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Marquise|Natural|GIA

2.51ct H SI2 Marquise Natural Diamond

VG • H/SI2 • GIA 7568358031

Certificate GIA 7568358031

Diamond specifications and retailer prices

From $20,915 USD
As of October 28, 2026
Save $16,834 USD (45%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $37,749 USD at MOH London · As of October 29, 2026
View at MOH London

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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 7568358031. Listed at 22 retailers as of October 28, 2026, with prices from $20,915 to $37,749, a $16,834 spread on the same certified stone. MOH London lists it at $37,749. 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

2.51
Carat
H
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7568358031
Dimensions13.57 × 7.14 × 4.56 mm
L/W Ratio1.90
Culet sizeNone
Top View
13.57 mm7.14 mm2.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7568358031
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NDepth 63.8%

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 28
Current: $37,749 USD|Low: $20,915 USD|High: $37,749 USD|Avg: $25,716 USD
MOH London
Retailer 2
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Retailer 22
October 31, 2026
Retailer 6$20,915 USD
Retailer 12$21,614 USD
Retailer 9$22,102 USD
Retailer 20$22,288 USD
Retailer 11$22,761 USD
Retailer 15$23,410 USD
Retailer 13$23,552 USD
Retailer 18$24,012 USD
Retailer 21$24,042 USD
Retailer 17$24,436 USD
Retailer 4$24,904 USD
Retailer 14$25,244 USD
Retailer 3$25,680 USD
Retailer 22$25,680 USD
Retailer 8$25,697 USD
Retailer 7$26,046 USD
Retailer 19$26,530 USD
Retailer 5$27,047 USD
Retailer 16$27,746 USD
Retailer 2$29,172 USD
Retailer 10$34,060 USD
MOH London$37,749 USD

16 data points across 22 retailers

22 retailers$20,915 USD to $37,749 USD

A
Cheapest Retailer
-
$20,915 USD
B+
Retailer 2
-
$21,614 USD
View
B+
Retailer 3
-
$22,102 USD
View
B+
Retailer 4
-
$22,288 USD
View
B+
Retailer 5
-
$22,761 USD
View
B+
Retailer 6
-
$23,410 USD
View
B+
Retailer 7
-
$23,552 USD
₹2,243,086 INR
View
B+
Retailer 8
-
$24,012 USD
A$36,941 AUD
View
B+
Retailer 9
-
$24,042 USD
View
B+
Retailer 10
-
$24,436 USD
£19,241 GBP
View
B+
Retailer 11
-
$24,904 USD
View
B+
Retailer 12
-
$25,244 USD
View
B+
Retailer 13
-
$25,680 USD
View
B+
Retailer 14
-
$25,680 USD
View
B+
Retailer 15
-
$25,697 USD
View
B+
Retailer 16
-
$26,046 USD
View
B
Retailer 17
-
$26,530 USD
View
B
Retailer 18
-
$27,047 USD
View
B
Retailer 19
-
$27,746 USD
£21,847 GBP
View
B
Retailer 20
-
$29,172 USD
€27,783 EUR
View
B
Retailer 21
-
$34,060 USD
View
Most Expensive
B
MOH London
D32B57E72 · Oct 29
$37,749 USD
£29,724 GBP
View
21 more retailers have this diamond
Prices start from $20,915 USDSave up to $16,834 USD

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
$20,915 USD