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Marquise|Natural|GIA

0.51ct H VS1 Marquise Natural Diamond

EX • H/VS1 • GIA 7556831051

Certificate GIA 7556831051

Diamond specifications and retailer prices

From £459 GBP
As of November 6, 2026
Save £1,478 GBP (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,937 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556831051. Listed at 13 retailers as of November 5, 2026, with prices from £459 to £1,937, a £1,478 spread on the same certified stone. NZ Jewellers lists it at £1,937. 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
VS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 7556831051
Dimensions8.01 × 4.19 × 2.61 mm
L/W Ratio1.91
Girdle conditionThick
Top View
8.01 mm4.19 mm0.51 ctH / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 7556831051
Side View
Table 55.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 62.2%

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 6
Current: £1,937 GBP|Low: £323 GBP|High: £1,937 GBP|Avg: £872 GBP|+21.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 2£459 GBP
Retailer 3£483 GBP
Retailer 11£626 GBP
Retailer 9£628 GBP
Retailer 5£731 GBP
Retailer 4£765 GBP
Retailer 10£827 GBP
Retailer 7£869 GBP
Retailer 6£953 GBP
Retailer 8£1,132 GBP
Retailer 12£1,241 GBP
NZ Jewellers£1,937 GBP

37 data points across 12 retailers

13 retailers£459 GBP to £1,937 GBP

A
Cheapest Retailer
-
£459 GBP
A
Retailer 2
-
£483 GBP
View
Final sale: no returns
B+
Retailer 3
-
£626 GBP
View
A
Retailer 4
-
£628 GBP
View
Retailer 5
-
£691 GBP
View
Price last confirmed 41 days ago
B+
Retailer 6
-
£731 GBP
View
Retailer 7
-
£765 GBP
View
Price last confirmed 33 days ago
B+
Retailer 8
-
£827 GBP
View
B+
Retailer 9
-
£869 GBP
View
B
Retailer 10
-
£953 GBP
View
B
Retailer 11
-
£1,132 GBP
View
B
Retailer 12
-
£1,241 GBP
View
Most Expensive
B
NZ Jewellers
59dc53fe-22c7-46ee-872b-7f03dcdd84e8 · Nov 5
£1,937 GBP
$2,593 USD
View
12 more retailers have this diamond
Prices start from £459 GBPSave up to £1,478 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
£459 GBP