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Round|Natural|GIA

2.51ct H SI2 Round Natural Diamond

VG • H/SI2 • GIA 6541751280

Certificate GIA 6541751280

Diamond specifications and retailer prices

From £12,507 GBP
$16,758 USD
As of October 29, 2026
Save £8,920 GBP (42%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £21,427 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by GIA 6541751280. Listed at 23 retailers as of October 29, 2026, with prices from £12,507 to £21,427, a £8,920 spread on the same certified stone. MOH London lists it at £21,427. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.51
Carat
H
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 6541751280
Dimensions8.50 × 8.39 × 5.43 mm
L/W Ratio1.01
Top View
8.50 mm8.39 mm2.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6541751280
Side View
Table 56.0%Crown 38°Girdle: ThickPavilion 40°Culet: NoneDepth 64.3%

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 29
Current: £21,427 GBP|Low: £12,507 GBP|High: £22,197 GBP|Avg: £15,234 GBP|-3.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
October 31, 2026
Retailer 7£12,507 GBP
Retailer 3£12,546 GBP
Retailer 8£12,817 GBP
Retailer 2£13,007 GBP
Retailer 6£13,078 GBP
Retailer 17£13,146 GBP
Retailer 11£13,647 GBP
Retailer 9£13,931 GBP
Retailer 13£14,098 GBP
Retailer 4£14,329 GBP
Retailer 5£14,579 GBP
Retailer 21£14,784 GBP
Retailer 10£15,024 GBP
Retailer 19£15,024 GBP
Retailer 18£15,352 GBP
Retailer 20£15,524 GBP
Retailer 16£15,792 GBP
Retailer 14£16,389 GBP
Retailer 15£16,460 GBP
Retailer 12£19,332 GBP
MOH London£21,427 GBP

32 data points across 21 retailers

23 retailers£12,507 GBP to £21,427 GBP

A
Cheapest Retailer
-
£12,507 GBP
$16,758 USD
A
Retailer 2
-
£12,546 GBP
$16,810 USD
View
A
Retailer 3
-
£12,817 GBP
$17,174 USD
View
A
Retailer 4
-
£13,007 GBP
₹1,659,808 INR
View
A
Retailer 5
-
£13,078 GBP
$17,523 USD
View
Final sale: no returns
A
Retailer 6
-
£13,146 GBP
$17,614 USD
View
B+
Retailer 7
-
£13,647 GBP
$18,285 USD
View
B+
Retailer 8
-
£13,931 GBP
$18,666 USD
View
B+
Retailer 9
-
£14,098 GBP
View
B+
Retailer 10
-
£14,329 GBP
$19,199 USD
View
B+
Retailer 11
-
£14,579 GBP
$19,534 USD
View
B+
Retailer 12
-
£14,784 GBP
$19,809 USD
View
B+
Retailer 13
-
£15,024 GBP
$20,130 USD
View
B+
Retailer 14
-
£15,024 GBP
$20,130 USD
View
B+
Retailer 15
-
£15,352 GBP
$20,570 USD
View
B+
Retailer 16
-
£15,524 GBP
$20,800 USD
View
B+
Retailer 17
-
£15,792 GBP
View
Retailer 18
-
£15,799 GBP
$21,169 USD
View
Price last confirmed 70 days ago
Retailer 19
-
£15,921 GBP
$21,332 USD
View
Price last confirmed 8 days ago
B+
Retailer 20
-
£16,389 GBP
$21,959 USD
View
B+
Retailer 21
-
£16,460 GBP
€21,005 EUR
View
B
Retailer 22
-
£19,332 GBP
$25,903 USD
View
Most Expensive
B
MOH London
319BB0A7E · Oct 29
£21,427 GBP
View
22 more retailers have this diamond
Prices start from £12,507 GBPSave up to £8,920 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
£12,507 GBP