How to Care for Opal Inlay

Our Na Hoku opal inlay pieces use high quality Australian crystal opal. Opals are delicate gemstones and require special attention and care.

The best way to avoid damage to an opal is preventative care. Remove opal jewelry when showering, swimming, or washing your hands. It is best to remove your opal inlay pieces when doing any sort of activity that could bring the stone in contact with hard surfaces.

Opals can be sensitive to sudden changes in temperature or extreme changes in humidity levels.

Opals should be cleaned gently. To clean, wipe with a damp soft cloth; never soak or immerse in water for long periods of time. Opals should never be cleaned in an ultrasonic or steam cleaner and avoid exposure to bleach, chemical cleaning fluids, and salt water.

How to Care for Pearls

Pearls are the only gems produced by a living creature. Pearls and their beauty are therefore very special. Your pearls will retain their special beauty with just a little care.

Never allow your pearls to come in contact with anything that contains acid. Avoid contact with bleach, ammonia, alcohol and swimming pools. Always remove pearl rings before bathing or washing dishes. Apply hairspray and perfume before putting on pearls. Over time, acid and perspiration can dull pearls. The luster of your pearls can be preserved by occasionally cleaning them with a solution of mild soap and warm water. Follow this with drying and polishing with a clean, soft cloth. This simple care will insure the lasting beauty of your pearls.

Hawaiian Heirloom Jewelry

Hawaiian Heirloom Jewelry is exclusively Hawaiian in design, yet its origins began in England over a century ago.

In 1887, in celebration of her Golden Jubilee commemorating her fifty-year reign, Queen Victoria presented Hawaii’s Princess Lili’uokalani with a solid gold bracelet. According to English fashion, her name was engraved in old English lettering and enameled in black. The bracelet became one of Lili’uokalani’s most treasured pieces.

The enameled gold jewelry created a stir among Hawaii’s Ali’i (Royalty). The beautiful English carvings were reproduced incorporating various Island designs. Over time, Plumeria, Maile leaves, and other significant designs of Hawaiian origin have found their way into Hawaiian Heirloom Jewelry.


Today, Na Hoku Hawaiian Heirloom Jewelry is prized for its beautiful and enduring designs and commitment to quality and tradition.
Na Hoku continues to create all of our Hawaiian and Island Lifestyle jewelry in our manufacturing facility in Honolulu, Hawaii.

At Na Hoku, our craftsmen create traditional Hawaiian Heirloom jewelry by hand-engraving our designs. This is our commitment to the tradition and authenticity of this treasured art form that is meant to be worn with pride and handed down from generation to generation.
 
Na Hoku Hawaiian Heirloom Jewelry can be ordered with a personalized name in English or Hawaiian or engraved with “Kuuipo”, Hawaiian for “Sweetheart”.

Na Hoku Engraving Patterns
Please note that Ring scrolls do not include a flower, unless a flower is specifically requested.

Millimeter Width and Shape
Bracelets are available in millimeter widths of 4, 6, 8, 10, 12, and 18.  With the exception of the 18mm bracelet, all of our bracelets rings and pendants are made of 14K gold “barrel” wire. If you look at a cross section of a bracelet you will see that it has a domed shape. This gives our Hawaiian Heirloom bracelets and rings depth, strength, and beauty.

Rings are available in 4, 6, 8, and 10 millimeters while pendants are available in 6, 8, and 10-millimeter widths.
 For widths, an approximate millimeter conversion to inches would be:

  • 4mm =      1/8”
  • 6mm =      1/4”
  • 8mm =      5/16"
  • 10mm =     3/8”
  • 12mm =     1/2”
  • 15mm =     9/16”
  • 18mm =     3/4"
The 8 millimeter width, our most popular size, is most often selected in Traditional Hawaiian Heirloom bracelets, rings, and pendants due to the size and clarity of the engraving patterns and lettering on the 8 millimeter width.
 
Thickness
Most styles of bracelets, rings, and pendants are available in:
  • Standard Barrel Our most affordable weight, while still maintaining integrity and strength.
  • Medium Barrel The most often selected weight due to the combination of durability, quality, and price.
  • Heavy Barrel Heirloom jewelry made with this weight will be handed down from generation to generation.  Thicker and heavier, this jewelry will have additional durability and longevity.
Contour and Shape
Bracelets are always shaped oval, unless otherwise requested. The oval shape accommodates easier slip-on and removal of the bracelet.
 
Bracelet Sizing
Measurement for a correct fit for a traditional Hawaiian Heirloom bracelet can be most accurately made using a bracelet sizer and sliding it over the widest part of the hand. To ensure a proper fit, the bracelet sizer should go over the hand as snugly as possible. For further information, please visit the Na Hoku store nearest you or contact Na Hoku Customer Service.
 
Ring Sizing
Determining the proper ring size for rings measuring 8 millimeters and wider will need to be made using a “wide band” ring sizer, as the width of the ring will make a difference. For further information, please visit the Na Hoku store nearest you or contact Na Hoku Customer Service.

Free Inside Engraving
Inside Engraving for traditional Hawaiian Heirloom bracelets, rings, and pendants will be done free of charge when placed at the time of order. Inscription may be limited to space available on the bracelet, ring, or pendant.
 
Lettering
Any bracelet, ring, or pendant that is available for personalization may be ordered with the wearer’s name in English, Hawaiian, or another language of choice. Many items are worn with the traditional “Kuuipo”, the Hawaiian word for sweetheart.

Lettering is engraved in Old English style as was traditional in the days of Queen Victoria. Lettering in traditional black enamel is very popular and is most often selected for personalized Hawaiian Heirloom Jewelry.

The pleasing contrast of the black enamel letters on gold also accentuates the lettering of the wearer’s name.

Raised lettering is available on most styles of bracelets, rings, and pendants. The engraving is an appealing letter and background style that maximizes the reflective surface of each letter.

Raised enamel lettering is an appealing combination of raised lettering with traditional black enamel.
 
Letter Background and “Edging”Options
Different styles of letter and background may be selected

Black enamel lettering is available with your choice of styles of letter background:
  • Black enamel lettering with chip-chop background (EC). Chip-chop is a pattern of engraving similar to diamond cuts, producing a reflective background. This background is only used with black enameled letters and is the most popular combination.
  • Black enamel lettering with laser background (EL). Less reflective than the chip chop background, this pattern absorbs light allowing better visibility of the letters.
  • Raised enamel lettering available with laser background only (RE).
  • Black enamel with "Spaghetti" background.  This background is a thinner version of chip chop, and used on specific styles. (ES).
  • Raised Lettering:  The raised surface of the letter is high polished gold on a textured (laser) background (RL).  Please note:  Raised Lettering cannot be ordered with the chip-chop background as the combined reflective surface area would make the lettering difficult to read.
Our Vertical Heirloom pendants feature various “edging” engraving to enhance the designs.
  • SCH Scalloped Edge: a diamond cut effect that enhances the light’s reflection.
  • HPH High Polished Edge: a clean reflective edge.
  • CEH Coin Edge: adds texture and dimension.

The Na Hoku Solitaire Collection

Unique designs inspired by the Maile Lei, the Hawaiian wedding tradition that symbolizes Love, Honor, and Respect.

The Na Hoku Solitaire is available with round brilliant cut or princess cut diamonds of 1/4 carat, 1/3 carat, 1/2 carat, 3/4 carat, 1.00 carat, and larger.

The Na Hoku Solitaire rings and Na Hoku Wedding Bands are available in 18K White Gold, 18K Yellow Gold, and Platinum.

Na Hoku Solitaire Rings and Wedding Bands
Like an Island wedding, Na Hoku Solitaire and Wedding band designs offer you the essence and romance of the Hawaiian and Island Lifestyle. This very special collection, created by Na Hoku designers is timelessly elegant while possessing the unique style that is distinctively Na Hoku.

Na Hoku Solitaire Diamond
Each Na Hoku Solitaire diamond is cut for maximum brilliance and is accompanied by a GemEx(TM) Light Performance Analysis (TM) report testifying to the diamond's brilliance. All Na Hoku Solitaire diamonds have a Brilliance Scope (TM) rating of High or Very High.

Na Hoku Solitaire diamonds of 1/2 carat or larger are accompanied by an I.G.I. Diamond Report showing the individual number, description, and information regarding the diamond's shape and cut, proportions, finish, clarity grade, color grade, and cut grade.

All Na Hoku Solitaire diamonds are laser inscribed; "Na Hoku". Diamonds of 1/2 carat or larger are laser inscribed with "Na Hoku" and the I.G.I. diamond number on the diamond's girdle; visible using 10X magnification.

Cut
A full cut round brilliant diamond is produced with 58 facets whose placement and angles maximize the diamond's sparkle and brilliance.

Diamonds can be cut to maximize either carat weight or brilliance. Maximizing carat weight can result in a diamond that is cut either too deep or too shallow. While this results in a larger diamond, light will "leak out" of diamonds that are cut too deep or too shallow resulting in a loss of brilliance.

Na Hoku Solitaire diamonds are cut to proportions that ensure that the vast majority of light entering from the top of the diamond is reflected back through the top producing maximum brilliance.

Each and every round brilliant cut and princess cut diamond selected for our Na Hoku Solitaire rings must meet or exceed some of the highest standards in the diamond trade. Because of these exacting standards, less than five-percent (5%) of all diamonds are chosen to be laser inscribed with the Na Hoku name and used in the Na Hoku Solitaire collection.

Color
To many, most diamonds look colorless, but the subtle differences in color result in the value and desirability of a diamond. The closer a diamond is to having no color, the more valuable it becomes.

Color grades start at (D-F) Colorless, through (G-J) Near Colorless, through (K-M) Faint, etc. Na Hoku Solitaire diamonds are (G-I) at the top of the Near Colorless color grade scale.


Other color grades are available on request by contacting our Customer Service department, or visiting our Na Hoku stores.

Clarity
Formed in nature, diamonds may possess characteristics of crystallization which could be very minute trace minerals that are part of the crystallization process. These natural characteristics may appear as tiny black or white marks in the diamond called "inclusions".
Clarity grades start at (FL/IF) Flawless and Internally Flawless, through (I3) Included-3. Na Hoku Solitaire diamonds are (VS1 to SI2) on the Clarity Grading Scale.

Other clarity grades are available on request by contacting our Customer Service department, or visiting our Na Hoku stores.

Carat Weight
Carat weight is the unit of measure that signifies the size of the diamond by its weight and not by measurement. It is not a factor that denotes quality. Larger diamonds (heavier carat weight) are rarer and therefore more expensive than smaller diamonds.
Although an important determining factor in the value of the diamond; carat weight along with cut, color and clarity (the 4C's) are all contributing factors in determining value of a diamond.

Na Hoku Solitaire diamonds are selected for the best possible combination of carat weight, cut, color, and clarity. Na Hoku Solitaire rings are available with round brilliant cut or princess cut diamonds of 1/4 carat, 1/3 carat, 1/2 carat, 3/4 carat, 1.00 carat, and larger.
Larger diamonds are available on request by contacting our Customer Service, or visiting our Na Hoku stores.

Certificates and Information
Each Na Hoku Solitaire diamond is carefully selected to guarantee its quality and beauty. All Na Hoku Solitaire diamonds are accompanied by a GemEx Light Performance Analysis.

Diamonds of 1/2 carat or larger are also accompanied by an International Gemological Institute Diamond Report testifying to the diamond's color and clarity. All of this information is handsomely packaged in a Na Hoku blue leatherette binder for safe keeping.

GemEx Light Performance Analysis
GemEx® Systems has been the light performance standard in the diamond industry since 1998.
The GemEx BrillianceScope® Analyzer, which uses patented spectrophotometer technology, measures a diamond's white light (brilliance), color light (fire) and scintillation (sparkle).

It then rates each of these three measures compared to other diamonds of the same shape. The scale for each shape was set by measuring thousands of diamonds to determine the highest and lowest amount of white light, color light and scintillation possible for each shape.

The Light Performance Report includes the three bar graphs and also shows images of the diamond under 5 different light views used for measurement of Light Performance:


All Na Hoku Solitaire diamonds are rated high or very high by the GemEx Light Performance Analysis.

International Gemological Institute Diamond Report
Since 1975 International Gemological Institute (I.G.I.) reports have proven to be the internationally recognized benchmark for gemstone and fine jewelry evaluation.

I.G.I has no affiliation with any gem or jewelry sales organizations, resulting in the optimum platform for total independence in reporting accurate and consistent results.

Na Hoku Solitaire diamonds of 1/2 carat or larger are accompanied by an I.G.I. Diamond Report showing the individual number, description, and information regarding the diamond's shape and cut, proportions, finish, clarity grade, color grade, and cut grade. All Na Hoku Solitaire diamonds are laser inscribed; "Na Hoku". Diamonds of 1/2 carat or larger are laser inscribed with "Na Hoku" and the I.G.I. diamond number on the diamond's girdle; visible using 10X magnification.

The I.G.I. Diamond Report is essentially a statement attesting to the authenticity of a diamond and provides a reliable and accurate report of its identity and grade based on an internationally recognized system.

Each diamond is scientifically analyzed by several gemologists who use their experience in combination with state-of-the-art equipment to produce an accurate description of the characteristics of the diamond and the quality of its cut. With its detailed information presented in understandable language, the different qualities of a diamond can be truly appreciated.

The grade or quality of a diamond is based on four characteristics commonly referred to as the 4C's: the Cut, Color, Clarity and Carat Weight. These are analyzed and the results are recorded in the IGI Diamond Report.

This big, full-page report, containing all report details, a diamond diagram, and unique security features, comes in slightly different sizes, depending on the IGI location where it was issued: United States: 8,5in x 11in (218mm x 278mm) and elsewhere: 210mm x 290mm (8,25in x 11,4in)
 
For additional information please contact Na Hoku Customer Service, or visit any of our Na Hoku stores.

Upgrading Your Na Hoku Solitaire Ring
Na Hoku Solitaire customers can upgrade their ring towards the purchase of another Na Hoku Solitaire ring that is a minimum of twice the purchase price of their original ring.

Customers must provide all of the original documentation that accompanied their original Na Hoku Solitaire ring including; the sales receipt, GEMEX Light Performance Analysis, IGI Diamond Report (where applicable*), and the Certificate Folder.

Please note that the IGI Diamond Report with the laser engraved Na Hoku diamond number accompanies Na Hoku Solitaire diamonds of 1/2 carat and greater.

The customer's original Na Hoku Solitaire diamond must be in the same condition as when it was purchased, with no visible signs of damage.
 
Conflict-Free Diamonds
The United Nations (UN) defines conflict diamonds as "...diamonds that originate from areas controlled by forces or factions opposed to legitimate and internationally recognized governments, and are used to fund military action in opposition to those governments, or in contravention of the decisions of the Security Council."

In the 1990’s these diamonds were sometimes referred to as "blood diamonds"; diamonds illegally traded to fund conflict in war-torn areas, particularly in central and western Africa. In July 2000, the global diamond industry implemented its zero tolerance policy towards conflict diamonds by creating the Kimberley Process Certification System* and System of Warranties in conjunction with the UN and other governmental and non-governmental organizations.

Today, more than 99% of the world's diamonds are now from conflict free sources and are officially traded under the UN mandated Kimberley Process Certification System. Our diamonds are acquired from respected sources in the jewelry trade that are in compliance with the Kimberley Process Certification System and System of Warranties.

The Kimberley Process requires participating governments to ensure that each shipment of rough diamonds be exported/imported in a secure container, accompanied by a uniquely numbered, government-validated certificate stating that the diamonds are from sources free of conflict. Under the Kimberley Process, diamond shipments can only be exported and imported within co-participant countries in the Kimberley Process. No uncertified shipments of rough diamonds will be permitted to enter or leave a participant's country. This ring-fences conflict diamonds and as such ensures they are unable to enter the legitimate diamond supply chain and thus, cannot be used for illegitimate purposes.

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