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Marquise|Natural|GIA

0.51ct D IF Marquise Natural Diamond

EX • D/IF • GIA 1557157190

Certificate GIA 1557157190

Diamond specifications and retailer prices

From £773 GBP
$1,036 USD
As of October 31, 2026
Save £933 GBP (55%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,706 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1557157190. Listed at 15 retailers as of October 31, 2026, with prices from £773 to £1,706, a £933 spread on the same certified stone. Flawless Fine Jewelry lists it at £1,706. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.37°
Pavilion angle40.53°
OriginNatural
Grading LabGIA
CertificateGIA 1557157190
Dimensions7.78 × 4.12 × 2.64 mm
L/W Ratio1.89
Culet sizeNone
Top View
7.78 mm4.12 mm0.51 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557157190
Side View
Table 59.0%Crown 37.37°Girdle: STK-VTKPavilion 40.53°Culet: NoneDepth 64.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £1,706 GBP|Low: £773 GBP|High: £1,706 GBP|Avg: £1,006 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
Retailer 14
November 2, 2026
Retailer 9£773 GBP
Retailer 3£784 GBP
Retailer 10£813 GBP
Retailer 12£838 GBP
Retailer 5£842 GBP
Retailer 11£851 GBP
Retailer 7£873 GBP
Retailer 8£970 GBP
Retailer 2£1,118 GBP
Retailer 4£1,142 GBP
Retailer 14£1,145 GBP
Retailer 13£1,178 GBP
Retailer 6£1,262 GBP
Flawless Fine Jewelry£1,706 GBP

39 data points across 14 retailers

15 retailers£773 GBP to £1,706 GBP

A
Cheapest Retailer
-
£773 GBP
$1,036 USD
A
Retailer 2
-
£784 GBP
SGD 1,420 SGD
View
A
Retailer 3
-
£813 GBP
$1,089 USD
View
A
Retailer 4
-
£838 GBP
$1,123 USD
View
A
Retailer 5
-
£842 GBP
SGD 1,524 SGD
View
A
Retailer 6
-
£851 GBP
$1,140 USD
View
A
Retailer 7
-
£873 GBP
View
A
Retailer 8
-
£970 GBP
$1,300 USD
View
B+
Retailer 9
-
£1,077 GBP
$1,443 USD
View
B+
Retailer 10
-
£1,118 GBP
€1,427 EUR
View
B+
Retailer 11
-
£1,142 GBP
$1,530 USD
View
B+
Retailer 12
-
£1,145 GBP
View
B+
Retailer 13
-
£1,178 GBP
$1,579 USD
View
B+
Retailer 14
-
£1,262 GBP
$1,691 USD
View
Most Expensive
B
Flawless Fine Jewelry
A5DA56A30 · Nov 2
£1,706 GBP
View
14 more retailers have this diamond
Prices start from £773 GBPSave up to £933 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
£773 GBP