Round|Natural|GIA

2.51ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 5513840113

Certificate GIA 5513840113

Diamond specifications and retailer prices

From $27,312 USD
£21,506 GBP
As of October 30, 2026
Save $15,015 USD (35%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $42,327 USD at MOH London · As of October 29, 2026
View at MOH London

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5513840113. Listed at 11 retailers as of October 29, 2026, with prices from $27,312 to $42,327, a $15,015 spread on the same certified stone. MOH London lists it at $42,327. 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
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5513840113
Dimensions8.70 × 8.66 × 5.41 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
8.70 mm8.66 mm2.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5513840113
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: $42,327 USD|Low: $24,024 USD|High: $42,609 USD|Avg: $30,848 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 5$26,220 USD
Retailer 6$26,426 USD
Retailer 4$27,312 USD
Retailer 3$29,822 USD
Retailer 2$31,798 USD
MOH London$42,327 USD

46 data points across 6 retailers

11 retailers$27,312 USD to $42,327 USD

Retailer 1
-
$26,220 USD
Price last confirmed 12 days ago
A
Retailer 2
-
$27,312 USD
£21,506 GBP
View
B+
Retailer 3
-
$28,246 USD
View
B+
Retailer 4
-
$29,822 USD
£23,482 GBP
View
B+
Retailer 5
-
$29,931 USD
View
B+
Retailer 6
-
$31,427 USD
View
B+
Retailer 7
-
$31,798 USD
€30,284 EUR
View
B+
Retailer 8
-
$32,425 USD
View
B+
Retailer 9
-
$33,311 USD
View
B+
Retailer 10
-
$33,672 USD
View
Most Expensive
B
MOH London
75767EC3D · Oct 29
$42,327 USD
£33,328 GBP
View
10 more retailers have this diamond
Prices start from $27,312 USDSave up to $15,015 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 Round
$27,312 USD