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Round|Natural|GIA

2.51ct I VS1 Round Natural Diamond

EX • I/VS1 • GIA 1232747454

Certificate GIA 1232747454

Diamond specifications and retailer prices

From £16,647 GBP
CA$30,979 CAD
As of October 30, 2026
Save £10,862 GBP (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £27,509 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1232747454. Listed at 12 retailers as of October 29, 2026, with prices from £16,647 to £27,509, a £10,862 spread on the same certified stone. MOH London lists it at £27,509. 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
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1232747454
Dimensions8.61 × 8.66 × 5.39 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Feather, Cloud, Pinpoint
Top View
8.61 mm8.66 mm2.51 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232747454
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.4%

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 30
Current: £27,509 GBP|Low: £16,647 GBP|High: £27,757 GBP|Avg: £20,011 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2£16,647 GBP
Retailer 4£16,751 GBP
Retailer 12£16,789 GBP
Retailer 6£17,844 GBP
Retailer 7£18,223 GBP
Retailer 8£19,220 GBP
Retailer 9£19,826 GBP
Retailer 10£20,643 GBP
Retailer 5£20,784 GBP
Retailer 11£21,299 GBP
Retailer 3£24,820 GBP
MOH London£27,509 GBP

9 data points across 12 retailers

12 retailers£16,647 GBP to £27,509 GBP

A
Cheapest Retailer
-
£16,647 GBP
CA$30,979 CAD
A
Retailer 2
-
£16,751 GBP
$22,445 USD
View
A
Retailer 3
-
£16,789 GBP
$22,496 USD
View
Final sale: no returns
A
Retailer 4
-
£17,844 GBP
View
A
Retailer 5
-
£18,223 GBP
$24,417 USD
View
B+
Retailer 6
-
£19,220 GBP
$25,753 USD
View
B+
Retailer 7
-
£19,826 GBP
$26,564 USD
View
B+
Retailer 8
-
£20,643 GBP
$27,660 USD
View
B+
Retailer 9
-
£20,784 GBP
€26,522 EUR
View
B+
Retailer 10
-
£21,299 GBP
$28,538 USD
View
B+
Retailer 11
-
£24,820 GBP
$33,256 USD
View
Most Expensive
B
MOH London
508A0851A · Oct 29
£27,509 GBP
View
11 more retailers have this diamond
Prices start from £16,647 GBPSave up to £10,862 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.

A
2.51ct Round
£16,647 GBP