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Marquise|Natural|GIA

0.51ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 2564139739

Certificate GIA 2564139739

Diamond specifications and retailer prices

From €498 EUR
SGD 752 SGD
As of November 1, 2026
Save €382 EUR (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €880 EUR at Frank Darling · As of November 2, 2026
View at Frank Darling

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2564139739. Listed at 5 retailers as of November 1, 2026, with prices from €498 to €880, a €382 spread on the same certified stone. Frank Darling lists it at €880. 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
G
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564139739
Dimensions7.89 × 4.14 × 2.61 mm
L/W Ratio1.91
Culet sizeNone
Top View
7.89 mm4.14 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2564139739
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.0%

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: Nov 1
Current: €880 EUR|Low: €498 EUR|High: €890 EUR|Avg: €662 EUR|-1.1%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6€498 EUR
Retailer 3€510 EUR
Retailer 8€520 EUR
Retailer 2€586 EUR
Retailer 4€649 EUR
Retailer 9€716 EUR
Retailer 7€739 EUR
Retailer 5€748 EUR
Frank Darling€880 EUR

19 data points across 9 retailers

5 retailers€498 EUR to €880 EUR

A
Cheapest Retailer
-
€498 EUR
SGD 752 SGD
Retailer 2
-
€510 EUR
$570 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
€586 EUR
£516 GBP
View
Retailer 4
-
€748 EUR
$836 USD
View
Price last confirmed 16 days ago
Most Expensive
B
Frank Darling
2679425HK · Nov 2
€880 EUR
$984 USD
View
4 more retailers have this diamond
Prices start from €498 EURSave up to €382 EUR

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
€498 EUR