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Marquise|Natural|GIA

2.51ct H SI2 Marquise Natural Diamond

ID • H/SI2 • GIA 2564718645

Certificate GIA 2564718645

Diamond specifications and retailer prices

From $28,363 SGD
As of November 1, 2026
Save $8,054 SGD (22%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $36,417 SGD at Frank Darling · As of November 1, 2026
View at Frank Darling

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2564718645. Listed at 6 retailers as of November 1, 2026, with prices from $28,363 to $36,417, a $8,054 spread on the same certified stone. Frank Darling lists it at $36,417. 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

2.51
Carat
H
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564718645
Dimensions14.31 × 6.76 × 4.27 mm
L/W Ratio2.12
Top View
14.31 mm6.76 mm2.51 ctH / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564718645
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.1%

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 1
Current: $36,417 SGD|Low: $28,363 SGD|High: $36,417 SGD|Avg: $31,642 SGD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$28,363 SGD
Retailer 2$30,412 SGD
Retailer 3$30,953 SGD
Retailer 4$31,194 SGD
Retailer 5$32,363 SGD
Frank Darling$36,417 SGD

5 data points across 6 retailers

6 retailers$28,363 SGD to $36,417 SGD

A
Cheapest Retailer
-
$28,363 SGD
B+
Retailer 2
-
$30,412 SGD
£18,724 GBP
View
B+
Retailer 3
-
$30,953 SGD
$24,203 USD
View
B+
Retailer 4
-
$31,194 SGD
$24,391 USD
View
B+
Retailer 5
-
$32,363 SGD
$25,305 USD
View
Most Expensive
B
Frank Darling
260646-77HK · Nov 1
$36,417 SGD
$28,475 USD
View
5 more retailers have this diamond
Prices start from $28,363 SGDSave up to $8,054 SGD

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
2.51ct Marquise
$28,363 SGD