CaratHunter
Plans
Marquise|Natural|GIA

0.51ct H VVS1 Marquise Natural Diamond

EX • H/VVS1 • GIA 1563340127

Certificate GIA 1563340127

Diamond specifications and retailer prices

From £556 GBP
$745 USD
As of October 31, 2026
Save £684 GBP (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,240 GBP at Flawless Fine Jewelry · As of November 2, 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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1563340127. Listed at 14 retailers as of October 31, 2026, with prices from £556 to £1,240, a £684 spread on the same certified stone. Flawless Fine Jewelry lists it at £1,240. 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
VVS1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38.9°
Pavilion angle41.3°
OriginNatural
Grading LabGIA
CertificateGIA 1563340127
Dimensions7.85 × 4.13 × 2.63 mm
L/W Ratio1.90
Culet sizeNone
Top View
7.85 mm4.13 mm0.51 ctH / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1563340127
Side View
Table 59.0%Crown 38.9°Girdle: STK-VTKPavilion 41.3°Culet: NoneDepth 63.7%

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: Oct 31
Current: £1,240 GBP|Low: £556 GBP|High: £1,240 GBP|Avg: £745 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 2, 2026
Retailer 3£556 GBP
Retailer 9£584 GBP
Retailer 8£601 GBP
Retailer 4£605 GBP
Retailer 10£618 GBP
Retailer 11£626 GBP
Retailer 2£672 GBP
Retailer 6£698 GBP
Retailer 7£812 GBP
Retailer 12£830 GBP
Retailer 5£904 GBP
Retailer 13£915 GBP
Flawless Fine Jewelry£1,240 GBP

39 data points across 13 retailers

14 retailers£556 GBP to £1,240 GBP

A
Cheapest Retailer
-
£556 GBP
$745 USD
A
Retailer 2
-
£584 GBP
SGD 1,058 SGD
View
A
Retailer 3
-
£601 GBP
$805 USD
View
A
Retailer 4
-
£605 GBP
SGD 1,096 SGD
View
A
Retailer 5
-
£618 GBP
$828 USD
View
A
Retailer 6
-
£626 GBP
$839 USD
View
B+
Retailer 7
-
£672 GBP
View
A
Retailer 8
-
£698 GBP
$935 USD
View
B+
Retailer 9
-
£812 GBP
€1,036 EUR
View
B+
Retailer 10
-
£824 GBP
View
B+
Retailer 11
-
£847 GBP
$1,135 USD
View
B+
Retailer 12
-
£904 GBP
$1,212 USD
View
B+
Retailer 13
-
£915 GBP
$1,227 USD
View
Most Expensive
B
Flawless Fine Jewelry
3061B7764 · Nov 2
£1,240 GBP
View
13 more retailers have this diamond
Prices start from £556 GBPSave up to £684 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
£556 GBP