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Marquise|Natural|GIA

0.51ct F SI2 Marquise Natural Diamond

VG • F/SI2 • GIA 6565139322

Certificate GIA 6565139322

Diamond specifications and retailer prices

From €544 EUR
SGD 824 SGD
As of November 2, 2026
Save €378 EUR (41%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €921 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 F colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6565139322. Listed at 7 retailers as of November 2, 2026, with prices from €544 to €921, a €378 spread on the same certified stone. Frank Darling lists it at €921. 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
F
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6565139322
Dimensions7.90 × 4.17 × 2.65 mm
L/W Ratio1.89
Culet sizeNone
Top View
7.90 mm4.17 mm0.51 ctF / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6565139322
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 63.4%

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 2
Current: €921 EUR|Low: €543 EUR|High: €921 EUR|Avg: €704 EUR
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 9€544 EUR
Retailer 5€550 EUR
Retailer 7€557 EUR
Retailer 2€638 EUR
Retailer 8€706 EUR
Retailer 6€760 EUR
Retailer 3€768 EUR
Retailer 4€796 EUR
Retailer 10€813 EUR
Frank Darling€921 EUR

26 data points across 10 retailers

7 retailers€544 EUR to €921 EUR

A
Cheapest Retailer
-
€544 EUR
SGD 824 SGD
Retailer 2
-
€557 EUR
$625 USD
View
Price last confirmed 26 days ago
B+
Retailer 3
-
€638 EUR
£564 GBP
View
B+
Retailer 4
-
€706 EUR
$792 USD
View
B+
Retailer 5
-
€768 EUR
£678 GBP
View
Retailer 6
-
€813 EUR
$912 USD
View
Price last confirmed 24 days ago
Most Expensive
B
Frank Darling
2679412HK · Nov 2
€921 EUR
$1,033 USD
View
6 more retailers have this diamond
Prices start from €544 EURSave up to €378 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
€544 EUR