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Marquise|Natural|GIA

0.51ct I IF Marquise Natural Diamond

VG • I/IF • GIA 6552090040

Certificate GIA 6552090040

Diamond specifications and retailer prices

From £827 GBP
A$1,708 AUD
As of November 1, 2026
3 retailers carry this diamond
Most expensive: £827 GBP at GemTrove
View at GemTrove

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded I colour (near-colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6552090040. Listed at 3 retailers as of November 1, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
I
Colour
IF
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552090040
Dimensions7.62 × 4.11 × 2.70 mm
L/W Ratio1.85
Top View
7.62 mm4.11 mm0.51 ctI / IF
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552090040
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 65.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: £827 GBP|Low: £446 GBP|High: £1,283 GBP|Avg: £749 GBP
GemTrove
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
September 18, 2026
Retailer 8£446 GBP
Retailer 6£486 GBP
Retailer 7£577 GBP
Retailer 2£607 GBP
Retailer 12£617 GBP
Retailer 14£623 GBP
Retailer 10£721 GBP
Retailer 11£741 GBP
Retailer 4£786 GBP
Retailer 13£826 GBP
GemTrove£827 GBP
Retailer 3£890 GBP
Retailer 5£984 GBP
Retailer 9£1,238 GBP

35 data points across 14 retailers

3 retailers

Retailer 1
-
£486 GBP
HK$5,100 HKD
Price last confirmed 59 days ago
Retailer 2
-
£577 GBP
€738 EUR
View
Price last confirmed 46 days ago
Most Expensive
B
GemTrove
GT-N-01271844-98 · Nov 1
£827 GBP
A$1,708 AUD
View
2 more retailers have this diamond

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.

B
0.51ct Marquise
£827 GBP