Marquise|Natural|GIA

0.51ct H VS1 Marquise Natural Diamond

EX • H/VS1 • GIA 1555757703

Certificate GIA 1555757703

Diamond specifications and retailer prices

From £503 GBP
As of November 5, 2026
Save £158 GBP (24%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,048 GBP at Flawless Fine Jewelry · As of October 29, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1555757703. Listed at 12 retailers as of November 5, 2026, with a 31% 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555757703
Dimensions7.82 × 4.13 × 2.65 mm
L/W Ratio1.89
Culet sizeNone
Top View
7.82 mm4.13 mm0.51 ctH / VS1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555757703
Side View
Table 57.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.2%

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 5
Current: £1,048 GBP|Low: £500 GBP|High: £1,082 GBP|Avg: £736 GBP|+4.5%
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
November 5, 2026
Retailer 2£503 GBP
Retailer 11£506 GBP
Retailer 9£536 GBP
Retailer 8£594 GBP
Retailer 7£657 GBP
Retailer 6£703 GBP
Retailer 10£708 GBP
Retailer 5£741 GBP
Retailer 3£758 GBP
Retailer 12£820 GBP
Retailer 4£1,005 GBP
Flawless Fine Jewelry£1,048 GBP

29 data points across 12 retailers

12 retailers£503 GBP to £660 GBP

A
Cheapest Retailer
-
£503 GBP
Retailer 2
-
£506 GBP
View
Price last confirmed 8 days ago
Retailer 3
-
£536 GBP
View
Price last confirmed 7 days ago
Retailer 4
-
£594 GBP
View
Price last confirmed 7 days ago
Retailer 5
-
£657 GBP
View
Price last confirmed 9 days ago
B+
Retailer 6
-
£660 GBP
View
Retailer 7
-
£703 GBP
View
Price last confirmed 9 days ago
Retailer 8
-
£708 GBP
View
Price last confirmed 8 days ago
Retailer 9
-
£741 GBP
View
Price last confirmed 7 days ago
Retailer 10
-
£758 GBP
View
Price last confirmed 10 days ago
Retailer 11
-
£820 GBP
View
Price last confirmed 8 days ago
Most Expensive
Flawless Fine Jewelry
2C8B4EC23 · Oct 29
£1,048 GBP
View
Price last confirmed 8 days ago
11 more retailers have this diamond
Prices start from £503 GBPSave up to £158 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
£503 GBP