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Marquise|Natural|GIA

0.51ct D IF Marquise Natural Diamond

EX • D/IF • GIA 2566276361

Certificate GIA 2566276361

Diamond specifications and retailer prices

From £818 GBP
$1,096 USD
As of October 31, 2026
Save £797 GBP (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,615 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 2566276361. Listed at 15 retailers as of October 31, 2026, with prices from £818 to £1,615, a £797 spread on the same certified stone. Flawless Fine Jewelry lists it at £1,615. 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 angle37.57°
Pavilion angle38°
OriginNatural
Grading LabGIA
CertificateGIA 2566276361
Dimensions8.74 × 4.10 × 2.43 mm
L/W Ratio2.13
Culet sizeNone
Top View
8.74 mm4.10 mm0.51 ctD / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566276361
Side View
Table 59.0%Crown 37.57°Girdle: MED-THKPavilion 38°Culet: NoneDepth 59.3%

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: Oct 31
Current: £1,182 GBP|Low: £826 GBP|High: £1,188 GBP|Avg: £1,001 GBP|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 5£826 GBP
Retailer 4£843 GBP
Retailer 2£922 GBP
Retailer 3£1,026 GBP
Retailer 1£1,182 GBP
Retailer 6£1,188 GBP

40 data points across 6 retailers

15 retailers£818 GBP to £1,615 GBP

A
Cheapest Retailer
-
£818 GBP
$1,096 USD
A
Retailer 2
-
£826 GBP
SGD 1,495 SGD
View
A
Retailer 3
-
£843 GBP
$1,130 USD
View
A
Retailer 4
-
£859 GBP
$1,151 USD
View
A
Retailer 5
-
£884 GBP
$1,184 USD
View
A
Retailer 6
-
£890 GBP
SGD 1,612 SGD
View
A
Retailer 7
-
£903 GBP
$1,210 USD
View
A
Retailer 8
-
£922 GBP
View
A
Retailer 9
-
£1,026 GBP
$1,375 USD
View
B+
Retailer 10
-
£1,182 GBP
€1,508 EUR
View
B+
Retailer 11
-
£1,188 GBP
$1,592 USD
View
B+
Retailer 12
-
£1,212 GBP
View
B+
Retailer 13
-
£1,246 GBP
$1,670 USD
View
B+
Retailer 14
-
£1,331 GBP
$1,784 USD
View
Most Expensive
B
Flawless Fine Jewelry
634A3A15D · Nov 2
£1,615 GBP
View
14 more retailers have this diamond
Prices start from £818 GBPSave up to £797 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
£818 GBP