Oval|Natural|GIA

2.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 6545538505

Certificate GIA 6545538505

Diamond specifications and retailer prices

From $16,474 USD
HK$128,700 HKD
As of November 1, 2026
Save $13,383 USD (45%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $29,856 USD at MOH London · As of October 26, 2026
View at MOH London

About this 2.51ct natural oval diamond

This 2.51ct natural oval sits in the two to three carat band, graded D 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 6545538505. Listed at 13 retailers as of October 26, 2026, with prices from $16,474 to $29,856, a $13,383 spread on the same certified stone. MOH London lists it at $29,856. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6545538505
Dimensions10.58 × 7.53 × 4.80 mm
L/W Ratio1.41
Top View
10.58 mm7.53 mm2.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545538505
Side View
Table 64.0%CrownGirdle: THN-THNPavilionCulet: NoneDepth 63.7%

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: Nov 1
Current: $29,856 USD|Low: $16,474 USD|High: $32,172 USD|Avg: $22,294 USD|-7.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 10$16,474 USD
Retailer 2$18,296 USD
Retailer 3$19,564 USD
Retailer 5$19,858 USD
Retailer 4$20,195 USD
Retailer 7$21,425 USD
Retailer 11$22,127 USD
Retailer 8$22,829 USD
Retailer 6$23,164 USD
Retailer 12$23,708 USD
Retailer 9$27,046 USD
MOH London$29,856 USD

29 data points across 12 retailers

13 retailers$16,474 USD to $29,856 USD

A
Cheapest Retailer
-
$16,474 USD
HK$128,700 HKD
A
Retailer 2
-
$18,296 USD
₹1,742,445 INR
View
Retailer 3
-
$19,363 USD
SGD 26,166 SGD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$19,564 USD
View
A
Retailer 5
-
$19,858 USD
£15,636 GBP
View
A
Retailer 6
-
$20,195 USD
View
Final sale: no returns
A
Retailer 7
-
$21,425 USD
£16,870 GBP
View
Retailer 8
-
$22,127 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
$22,829 USD
View
A
Retailer 10
-
$23,164 USD
€22,061 EUR
View
A
Retailer 11
-
$23,708 USD
View
Retailer 12
-
$27,046 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
CB09CDDF4 · Oct 26
$29,856 USD
£23,509 GBP
View
12 more retailers have this diamond
Prices start from $16,474 USDSave up to $13,383 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 Oval
$16,474 USD