CaratHunter
Plans
Marquise|Natural|GIA

2.51ct I VS2 Marquise Natural Diamond

ID • I/VS2 • GIA 6555494651

Certificate GIA 6555494651

Diamond specifications and retailer prices

From £17,595 GBP
As of November 4, 2026
Save £4,572 GBP (21%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £22,168 GBP at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555494651. Listed at 10 retailers as of November 4, 2026, with prices from £17,595 to £22,168, a £4,572 spread on the same certified stone. 77 Diamonds lists it at £22,168. 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
VS2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.49°
Pavilion angle41.03°
OriginNatural
Grading LabGIA
CertificateGIA 6555494651
Dimensions12.37 × 6.95 × 4.79 mm
L/W Ratio1.78
Girdle conditionExtremely Thick
Culet sizeNone
Key to symbols
Feather
Top View
12.37 mm6.95 mm2.51 ctI / VS2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555494651
Side View
Table 58.0%Crown 40.49°Girdle: THK-ETKPavilion 41.03°Culet: NoneDepth 68.9%

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: Nov 4
Current: £22,168 GBP|Low: £17,595 GBP|High: £22,503 GBP|Avg: £20,032 GBP|+1.2%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 6£17,595 GBP
Retailer 7£18,709 GBP
Retailer 4£18,714 GBP
Retailer 3£18,820 GBP
Retailer 9£18,948 GBP
Retailer 5£19,824 GBP
Retailer 2£20,312 GBP
Retailer 8£20,960 GBP
Retailer 11£20,960 GBP
Retailer 12£21,658 GBP
Retailer 10£21,688 GBP
77 Diamonds£22,168 GBP

20 data points across 12 retailers

10 retailers£17,595 GBP to £22,168 GBP

A
Cheapest Retailer
-
£17,595 GBP
A
Retailer 2
-
£18,709 GBP
View
A
Retailer 3
-
£18,948 GBP
View
A
Retailer 4
-
£19,824 GBP
View
B+
Retailer 5
-
£20,312 GBP
View
B+
Retailer 6
-
£20,960 GBP
View
B+
Retailer 7
-
£20,960 GBP
View
B+
Retailer 8
-
£21,658 GBP
View
B+
Retailer 9
-
£21,688 GBP
View
Most Expensive
B+
77 Diamonds
MQZWGCUHUXU · Nov 5
£22,168 GBP
View
9 more retailers have this diamond
Prices start from £17,595 GBPSave up to £4,572 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
£17,595 GBP