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Round|Natural|GIA

2.51ct J VS1 Round Natural Diamond

EX • J/VS1 • GIA 1129655114

Certificate GIA 1129655114

Diamond specifications and retailer prices

From £16,886 GBP
$22,625 USD
As of October 25, 2026
Save £13,798 GBP (45%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £30,683 GBP 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 J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1129655114. Listed at 24 retailers as of October 25, 2026, with prices from £16,886 to £30,683, a £13,798 spread on the same certified stone. MOH London lists it at £30,683. 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
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1129655114
Dimensions8.69 × 8.63 × 5.40 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.69 mm8.63 mm2.51 ctJ / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1129655114
Side View
Table 57.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: £30,683 GBP|Low: £16,886 GBP|High: £30,888 GBP|Avg: £21,740 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 6£16,886 GBP
Retailer 3£18,199 GBP
Retailer 7£18,728 GBP
Retailer 8£19,693 GBP
Retailer 2£19,718 GBP
Retailer 4£22,875 GBP
Retailer 5£26,878 GBP
MOH London£30,683 GBP

35 data points across 8 retailers

24 retailers£16,886 GBP to £30,683 GBP

B+
Cheapest Retailer
-
£16,886 GBP
$22,625 USD
B+
Retailer 2
-
£17,792 GBP
$23,839 USD
View
B+
Retailer 3
-
£17,800 GBP
$23,850 USD
View
B+
Retailer 4
-
£18,199 GBP
₹2,322,340 INR
View
B
Retailer 5
-
£18,399 GBP
CA$34,240 CAD
View
B
Retailer 6
-
£18,728 GBP
$25,093 USD
View
Final sale: no returns
B
Retailer 7
-
£19,020 GBP
$25,485 USD
View
B
Retailer 8
-
£19,542 GBP
$26,184 USD
View
Retailer 9
-
£19,693 GBP
A$40,594 AUD
View
Price last confirmed 26 days ago
B
Retailer 10
-
£19,718 GBP
View
B
Retailer 11
-
£20,356 GBP
$27,275 USD
View
B
Retailer 12
-
£20,519 GBP
$27,493 USD
View
B
Retailer 13
-
£20,703 GBP
$27,740 USD
View
B
Retailer 14
-
£20,703 GBP
$27,740 USD
View
Retailer 15
-
£21,170 GBP
$28,366 USD
View
Price last confirmed 53 days ago
B
Retailer 16
-
£21,170 GBP
$28,366 USD
View
B
Retailer 17
-
£21,397 GBP
$28,670 USD
View
B
Retailer 18
-
£21,604 GBP
$28,947 USD
View
Retailer 19
-
£21,985 GBP
$29,457 USD
View
Price last confirmed 54 days ago
B
Retailer 20
-
£21,985 GBP
$29,457 USD
View
B
Retailer 21
-
£22,817 GBP
$30,572 USD
View
B
Retailer 22
-
£22,875 GBP
€29,191 EUR
View
B
Retailer 23
-
£26,878 GBP
ZAR 581,812 ZAR
View
Most Expensive
B
MOH London
E34EAEB6F · Oct 29
£30,683 GBP
View
23 more retailers have this diamond
Prices start from £16,886 GBPSave up to £13,798 GBP

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.

B+
2.51ct Round
£16,886 GBP