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Marquise|Natural|GIA

1.00ct F SI1 Marquise Natural Diamond

VG • F/SI1 • GIA 5566519907

Certificate GIA 5566519907

Diamond specifications and retailer prices

From $5,142 NZD
$2,893 USD
As of October 31, 2026
Save $4,636 NZD (47%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,779 NZD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5566519907. Listed at 15 retailers as of October 31, 2026, with prices from $5,142 to $9,779, a $4,636 spread on the same certified stone. Helzberg Diamonds lists it at $9,779. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.57°
Pavilion angle36.53°
OriginNatural
Grading LabGIA
CertificateGIA 5566519907
Dimensions11.13 × 5.09 × 2.88 mm
L/W Ratio2.19
Culet sizeNone
Top View
11.13 mm5.09 mm1.00 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566519907
Side View
Table 62.0%Crown 35.57°Girdle: STK-VTKPavilion 36.53°Culet: NDepth 56.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $9,779 NZD|Low: $5,142 NZD|High: $9,779 NZD|Avg: $6,700 NZD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 3, 2026
Retailer 13$5,142 NZD
Retailer 6$5,284 NZD
Retailer 14$5,543 NZD
Retailer 3$5,556 NZD
Retailer 9$5,652 NZD
Retailer 2$6,011 NZD
Retailer 5$6,195 NZD
Retailer 11$6,596 NZD
Retailer 4$6,732 NZD
Retailer 7$6,871 NZD
Retailer 8$7,132 NZD
Retailer 10$8,671 NZD
Retailer 12$9,228 NZD
Helzberg Diamonds$9,779 NZD

25 data points across 14 retailers

15 retailers$5,142 NZD to $9,779 NZD

A
Cheapest Retailer
-
$5,142 NZD
$2,893 USD
B+
Retailer 2
-
$5,238 NZD
SGD 3,983 SGD
View
B+
Retailer 3
-
$5,284 NZD
$2,973 USD
View
B+
Retailer 4
-
$5,543 NZD
$3,119 USD
View
B+
Retailer 5
-
$5,556 NZD
$3,126 USD
View
B+
Retailer 6
-
$5,652 NZD
$3,180 USD
View
B+
Retailer 7
-
$6,011 NZD
£2,663 GBP
View
B+
Retailer 8
-
$6,195 NZD
SGD 4,710 SGD
View
B
Retailer 9
-
$6,596 NZD
$3,711 USD
View
B
Retailer 10
-
$6,732 NZD
$3,788 USD
View
B
Retailer 11
-
$6,871 NZD
€3,682 EUR
View
B
Retailer 12
-
$7,132 NZD
$4,013 USD
View
B
Retailer 13
-
$8,671 NZD
$4,879 USD
View
Retailer 14
-
$9,228 NZD
$5,192 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Helzberg Diamonds
XZRLLMMLHPPGN · Nov 2
$9,779 NZD
$5,502 USD
View
14 more retailers have this diamond
Prices start from $5,142 NZDSave up to $4,636 NZD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.00ct Marquise
$5,142 NZD