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Marquise|Natural|GIA

0.51ct H VS2 Marquise Natural Diamond

EX • H/VS2 • GIA 2568418923

Certificate GIA 2568418923

Diamond specifications and retailer prices

From £527 GBP
As of November 4, 2026
Save £645 GBP (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,173 GBP at Flawless Fine Jewelry · As of November 6, 2026
View at Flawless Fine Jewelry

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded H 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 2568418923. Listed at 14 retailers as of November 4, 2026, with prices from £527 to £1,173, a £645 spread on the same certified stone. Flawless Fine Jewelry lists it at £1,173. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
H
Colour
VS2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.55°
Pavilion angle38.6°
OriginNatural
Grading LabGIA
CertificateGIA 2568418923
Dimensions7.90 × 4.17 × 2.53 mm
L/W Ratio1.89
Culet sizeNone
Top View
7.90 mm4.17 mm0.51 ctH / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2568418923
Side View
Table 60.0%Crown 39.55°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 60.7%

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: £1,173 GBP|Low: £527 GBP|High: £1,173 GBP|Avg: £712 GBP
Flawless Fine Jewelry
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11£527 GBP
Retailer 8£561 GBP
Retailer 13£575 GBP
Retailer 9£575 GBP
Retailer 10£587 GBP
Retailer 3£598 GBP
Retailer 7£637 GBP
Retailer 2£663 GBP
Retailer 6£767 GBP
Retailer 12£804 GBP
Retailer 4£855 GBP
Retailer 5£886 GBP
Flawless Fine Jewelry£1,173 GBP

42 data points across 13 retailers

14 retailers£527 GBP to £1,173 GBP

A
Cheapest Retailer
-
£527 GBP
A
Retailer 2
-
£561 GBP
View
A
Retailer 3
-
£575 GBP
View
A
Retailer 4
-
£575 GBP
View
A
Retailer 5
-
£587 GBP
View
A
Retailer 6
-
£598 GBP
View
B+
Retailer 7
-
£637 GBP
View
B+
Retailer 8
-
£663 GBP
View
B+
Retailer 9
-
£767 GBP
View
B+
Retailer 10
-
£781 GBP
View
B
Retailer 11
-
£804 GBP
View
B+
Retailer 12
-
£855 GBP
View
B
Retailer 13
-
£886 GBP
View
Most Expensive
B
Flawless Fine Jewelry
AAB1F7447 · Nov 6
£1,173 GBP
View
13 more retailers have this diamond
Prices start from £527 GBPSave up to £645 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
0.51ct Marquise
£527 GBP