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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 $583 SGD
As of October 31, 2026
Save $593 SGD (50%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,176 SGD 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 $583 to $1,176, a $593 spread on the same certified stone. Frank Darling lists it at $1,176. 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
Colour
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: $1,176 SGD|Low: $583 SGD|High: $1,207 SGD|Avg: $857 SGD|-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$583 SGD
Retailer 9$627 SGD
Retailer 3$646 SGD
Retailer 7$737 SGD
Retailer 6$816 SGD
Retailer 5$877 SGD
Retailer 2$897 SGD
Retailer 4$920 SGD
Retailer 10$949 SGD
Frank Darling$1,176 SGD

38 data points across 10 retailers

10 retailers$583 SGD to $1,176 SGD

A
Cheapest Retailer
-
$583 SGD
A
Retailer 2
-
$627 SGD
View
A
Retailer 3
-
$646 SGD
$505 USD
View
A
Retailer 4
-
$737 SGD
£454 GBP
View
B+
Retailer 5
-
$816 SGD
$638 USD
View
B+
Retailer 6
-
$877 SGD
$686 USD
View
B+
Retailer 7
-
$897 SGD
€668 EUR
View
B+
Retailer 8
-
$920 SGD
$719 USD
View
B+
Retailer 9
-
$949 SGD
$742 USD
View
Most Expensive
B
Frank Darling
2679945HK · Nov 2
$1,176 SGD
$919 USD
View
9 more retailers have this diamond
Prices start from $583 SGDSave up to $593 SGD

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
$583 SGD