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Round|Natural|GIA

2.51ct K VS1 Round Natural Diamond

EX • K/VS1 • GIA 6502421991

Certificate GIA 6502421991

Diamond specifications and retailer prices

From $14,882 USD
As of November 6, 2026
Save $10,377 USD (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $25,259 USD at MOH London · As of November 4, 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 K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 6502421991. Listed at 7 retailers as of November 4, 2026, with prices from $14,882 to $25,259, a $10,377 spread on the same certified stone. MOH London lists it at $25,259. At this carat range, natural pricing varies dramatically across retailers, so the cross-retailer spread on this exact stone is your single best indicator of fair price.

The 4Cs

2.51
Carat
K
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6502421991
Dimensions8.64 × 8.69 × 5.41 mm
L/W Ratio1.01
Top View
8.64 mm8.69 mm2.51 ctK / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6502421991
Side View
Table 58.0%Crown 35°Girdle: Slightly ThickPavilion 41.2°Culet: NoneDepth 62.4%

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 6
Current: $25,259 USD|Low: $14,882 USD|High: $25,632 USD|Avg: $19,438 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 6$14,882 USD
Retailer 3$16,575 USD
Retailer 5$16,902 USD
Retailer 4$19,610 USD
Retailer 2$22,269 USD
MOH London$25,259 USD

42 data points across 6 retailers

7 retailers$14,882 USD to $25,259 USD

A
Cheapest Retailer
-
$14,882 USD
A
Retailer 2
-
$16,575 USD
View
B+
Retailer 3
-
$16,902 USD
View
B+
Retailer 4
-
$19,610 USD
View
B
Retailer 5
-
$22,269 USD
View
B
Retailer 6
-
$22,974 USD
View
Most Expensive
B
MOH London
13F37865C · Nov 4
$25,259 USD
£19,889 GBP
View
6 more retailers have this diamond
Prices start from $14,882 USDSave up to $10,377 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
$14,882 USD