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Marquise|Natural|GIA

0.51ct G SI2 Marquise Natural Diamond

VG • G/SI2 • GIA 1569140330

Certificate GIA 1569140330

Diamond specifications and retailer prices

From €435 EUR
SGD 656 SGD
As of October 31, 2026
Save €423 EUR (49%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €858 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 1569140330. Listed at 9 retailers as of October 31, 2026, with prices from €435 to €858, a €423 spread on the same certified stone. Frank Darling lists it at €858. 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 1569140330
Dimensions7.61 × 4.11 × 2.69 mm
L/W Ratio1.85
Culet sizeNone
Top View
7.61 mm4.11 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1569140330
Side View
Table 58.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 65.4%

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: Oct 31
Current: €858 EUR|Low: €435 EUR|High: €881 EUR|Avg: €635 EUR|-2.7%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 7€435 EUR
Retailer 8€475 EUR
Retailer 2€492 EUR
Retailer 6€559 EUR
Retailer 5€618 EUR
Retailer 4€675 EUR
Retailer 3€698 EUR
Retailer 9€714 EUR
Frank Darling€858 EUR

38 data points across 9 retailers

9 retailers€435 EUR to €858 EUR

A
Cheapest Retailer
-
€435 EUR
SGD 656 SGD
A
Retailer 2
-
€475 EUR
SGD 717 SGD
View
A
Retailer 3
-
€492 EUR
$550 USD
View
A
Retailer 4
-
€559 EUR
£491 GBP
View
A
Retailer 5
-
€618 EUR
$691 USD
View
B+
Retailer 6
-
€675 EUR
View
B+
Retailer 7
-
€698 EUR
$780 USD
View
B+
Retailer 8
-
€714 EUR
$798 USD
View
Most Expensive
B
Frank Darling
2679426HK · Nov 2
€858 EUR
$958 USD
View
8 more retailers have this diamond
Prices start from €435 EURSave up to €423 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
€435 EUR