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Marquise|Natural|GIA

1.51ct F SI2 Marquise Natural Diamond

ID • F/SI2 • GIA 5556577202

Certificate GIA 5556577202

Diamond specifications and retailer prices

From $13,161 NZD
As of November 2, 2026
Save $10,203 NZD (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $23,364 NZD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5556577202. Listed at 6 retailers as of November 2, 2026, with prices from $13,161 to $23,364, a $10,203 spread on the same certified stone. NZ Jewellers lists it at $23,364. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
F
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle40.34°
Pavilion angle38.91°
OriginNatural
Grading LabGIA
CertificateGIA 5556577202
Dimensions10.69 × 6.01 × 3.76 mm
L/W Ratio1.78
Girdle conditionVery Thick
Key to symbols
Twinning Wisp, Knot, Feather, Crystal, Cavity
Top View
10.69 mm6.01 mm1.51 ctF / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5556577202
Side View
Table 63.0%Crown 40.34°Girdle: THK-VTKPavilion 38.91°Culet: NoneDepth 62.6%

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: Nov 2
Current: $23,364 NZD|Low: $12,519 NZD|High: $24,306 NZD|Avg: $16,525 NZD|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 2$13,161 NZD
Retailer 6$13,205 NZD
Retailer 5$13,969 NZD
Retailer 4$14,184 NZD
Retailer 3$19,468 NZD
NZ Jewellers$23,364 NZD

28 data points across 6 retailers

6 retailers$13,161 NZD to $23,364 NZD

A
Cheapest Retailer
-
$13,161 NZD
A
Retailer 2
-
$13,205 NZD
View
A
Retailer 3
-
$13,969 NZD
View
A
Retailer 4
-
$14,184 NZD
View
B+
Retailer 5
-
$19,468 NZD
View
Most Expensive
B
NZ Jewellers
e3c68807-8ece-4c9c-87ec-c0e815e56356 · Nov 3
$23,364 NZD
$12,952 USD
View
5 more retailers have this diamond
Prices start from $13,161 NZDSave up to $10,203 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
1.51ct Marquise
$13,161 NZD