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Marquise|Natural|GIA

0.51ct H VS1 Marquise Natural Diamond

EX • H/VS1 • GIA 6561302570

Certificate GIA 6561302570

Diamond specifications and retailer prices

From £478 GBP
As of November 6, 2026
Save £248 GBP (34%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,662 GBP at NZ Jewellers · As of October 17, 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 6561302570. Listed at 16 retailers as of November 6, 2026, with a 52% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6561302570
Dimensions7.99 × 4.19 × 2.61 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Top View
7.99 mm4.19 mm0.51 ctH / VS1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6561302570
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.3%

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: Nov 6
Current: £726 GBP|Low: £397 GBP|High: £1,237 GBP|Avg: £604 GBP|+18.1%
Retailer 1
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
November 6, 2026
Retailer 13£397 GBP
Retailer 8£478 GBP
Retailer 5£489 GBP
Retailer 11£507 GBP
Retailer 7£514 GBP
Retailer 6£524 GBP
Retailer 12£530 GBP
Retailer 10£551 GBP
Retailer 4£602 GBP
Retailer 9£615 GBP
Retailer 14£648 GBP
Retailer 1£726 GBP
Retailer 2£747 GBP
Retailer 3£1,230 GBP

31 data points across 14 retailers

16 retailers£478 GBP to £726 GBP

Retailer 1
-
£397 GBP
Price last confirmed 17 days ago
A
Retailer 2
-
£478 GBP
View
Retailer 3
-
£507 GBP
View
Price last confirmed 15 days ago
A
Retailer 4
-
£514 GBP
View
A
Retailer 5
-
£524 GBP
View
Retailer 6
-
£530 GBP
View
Price last confirmed 15 days ago
Retailer 7
-
£551 GBP
View
Price last confirmed 15 days ago
Retailer 8
-
£554 GBP
View
Price last confirmed 14 days ago
Retailer 9
-
£602 GBP
View
Price last confirmed 19 days ago
Retailer 10
-
£611 GBP
View
Price last confirmed 18 days ago
B+
Retailer 11
-
£726 GBP
View
Retailer 12
-
£732 GBP
View
Price last confirmed 14 days ago
Retailer 13
-
£746 GBP
View
Price last confirmed 18 days ago
Retailer 14
-
£1,070 GBP
View
Price last confirmed 18 days ago
Retailer 15
-
£1,230 GBP
View
Price last confirmed 19 days ago
Most Expensive
NZ Jewellers
a8ab3456-b4a7-49ef-8903-93f89374b8a5 · Oct 17
£1,662 GBP
$2,224 USD
View
Price last confirmed 20 days ago
15 more retailers have this diamond
Prices start from £478 GBPSave up to £248 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
£478 GBP