CaratHunter
Plans
Marquise|Natural|GIA

2.51ct H SI2 Marquise Natural Diamond

VG • H/SI2 • GIA 7568358031

Certificate GIA 7568358031

Diamond specifications and retailer prices

From £15,586 GBP
$20,915 USD
As of October 28, 2026
Save £12,545 GBP (45%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £28,131 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7568358031. Listed at 22 retailers as of October 28, 2026, with prices from £15,586 to £28,131, a £12,545 spread on the same certified stone. MOH London lists it at £28,131. 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 (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7568358031
Dimensions13.57 × 7.14 × 4.56 mm
L/W Ratio1.90
Culet sizeNone
Top View
13.57 mm7.14 mm2.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7568358031
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NDepth 63.8%

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 28
Current: £28,131 GBP|Low: £15,586 GBP|High: £28,131 GBP|Avg: £19,163 GBP
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
Retailer 22
October 31, 2026
Retailer 6£15,586 GBP
Retailer 12£16,107 GBP
Retailer 9£16,470 GBP
Retailer 20£16,609 GBP
Retailer 11£16,961 GBP
Retailer 15£17,445 GBP
Retailer 13£17,551 GBP
Retailer 18£17,893 GBP
Retailer 21£17,916 GBP
Retailer 17£18,209 GBP
Retailer 4£18,558 GBP
Retailer 14£18,812 GBP
Retailer 3£19,136 GBP
Retailer 22£19,136 GBP
Retailer 8£19,149 GBP
Retailer 7£19,409 GBP
Retailer 19£19,770 GBP
Retailer 5£20,155 GBP
Retailer 16£20,676 GBP
Retailer 2£21,739 GBP
Retailer 10£25,381 GBP
MOH London£28,131 GBP

16 data points across 22 retailers

22 retailers£15,586 GBP to £28,131 GBP

A
Cheapest Retailer
-
£15,586 GBP
$20,915 USD
B+
Retailer 2
-
£16,107 GBP
$21,614 USD
View
B+
Retailer 3
-
£16,470 GBP
$22,102 USD
View
B+
Retailer 4
-
£16,609 GBP
$22,288 USD
View
B+
Retailer 5
-
£16,961 GBP
$22,761 USD
View
B+
Retailer 6
-
£17,445 GBP
$23,410 USD
View
B+
Retailer 7
-
£17,551 GBP
₹2,243,086 INR
View
B+
Retailer 8
-
£17,893 GBP
A$36,941 AUD
View
B+
Retailer 9
-
£17,916 GBP
$24,042 USD
View
B+
Retailer 10
-
£18,209 GBP
View
B+
Retailer 11
-
£18,558 GBP
$24,904 USD
View
B+
Retailer 12
-
£18,812 GBP
$25,244 USD
View
B+
Retailer 13
-
£19,136 GBP
$25,680 USD
View
B+
Retailer 14
-
£19,136 GBP
$25,680 USD
View
B+
Retailer 15
-
£19,149 GBP
$25,697 USD
View
B+
Retailer 16
-
£19,409 GBP
$26,046 USD
View
B
Retailer 17
-
£19,770 GBP
$26,530 USD
View
B
Retailer 18
-
£20,155 GBP
$27,047 USD
View
B
Retailer 19
-
£20,676 GBP
View
B
Retailer 20
-
£21,739 GBP
€27,783 EUR
View
B
Retailer 21
-
£25,381 GBP
$34,060 USD
View
Most Expensive
B
MOH London
D32B57E72 · Oct 29
£28,131 GBP
View
21 more retailers have this diamond
Prices start from £15,586 GBPSave up to £12,545 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 Marquise
£15,586 GBP