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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 €990 EUR
A$1,708 AUD
As of November 1, 2026
3 retailers carry this diamond
Most expensive: €990 EUR 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
Color
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: €990 EUR|Low: €534 EUR|High: €1,535 EUR|Avg: €896 EUR
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€534 EUR
Retailer 6€582 EUR
Retailer 7€691 EUR
Retailer 2€726 EUR
Retailer 12€738 EUR
Retailer 14€746 EUR
Retailer 10€863 EUR
Retailer 11€887 EUR
Retailer 4€940 EUR
Retailer 13€988 EUR
GemTrove€990 EUR
Retailer 3€1,065 EUR
Retailer 5€1,178 EUR
Retailer 9€1,481 EUR

35 data points across 14 retailers

3 retailers

Retailer 1
-
€582 EUR
HK$5,100 HKD
Price last confirmed 59 days ago
Retailer 2
-
€691 EUR
View
Price last confirmed 46 days ago
Most Expensive
B
GemTrove
GT-N-01271844-98 · Nov 1
€990 EUR
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
€990 EUR