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Marquise|Natural|GIA

0.51ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 1563140120

Certificate GIA 1563140120

Diamond specifications and retailer prices

From €406 EUR
SGD 616 SGD
As of October 31, 2026
Save €413 EUR (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €820 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1563140120. Listed at 10 retailers as of October 31, 2026, with prices from €406 to €820, a €413 spread on the same certified stone. Frank Darling lists it at €820. 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
H
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1563140120
Dimensions8.32 × 4.12 × 2.41 mm
L/W Ratio2.02
Culet sizeNone
Top View
8.32 mm4.12 mm0.51 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1563140120
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.4%

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: €820 EUR|Low: €406 EUR|High: €841 EUR|Avg: €597 EUR|-2.6%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 8€406 EUR
Retailer 9€437 EUR
Retailer 3€450 EUR
Retailer 7€514 EUR
Retailer 6€569 EUR
Retailer 5€612 EUR
Retailer 2€625 EUR
Retailer 4€641 EUR
Retailer 10€661 EUR
Frank Darling€820 EUR

38 data points across 10 retailers

10 retailers€406 EUR to €820 EUR

A
Cheapest Retailer
-
€406 EUR
SGD 616 SGD
A
Retailer 2
-
€437 EUR
SGD 662 SGD
View
A
Retailer 3
-
€450 EUR
$505 USD
View
A
Retailer 4
-
€514 EUR
£454 GBP
View
B+
Retailer 5
-
€569 EUR
$638 USD
View
B+
Retailer 6
-
€612 EUR
$686 USD
View
B+
Retailer 7
-
€625 EUR
View
B+
Retailer 8
-
€641 EUR
$719 USD
View
Retailer 9
-
€661 EUR
$742 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Frank Darling
2679945HK · Nov 2
€820 EUR
$919 USD
View
9 more retailers have this diamond
Prices start from €406 EURSave up to €413 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
€406 EUR