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Marquise|Natural|GIA

0.50ct H SI1 Marquise Natural Diamond

VG • H/SI1 • GIA 6551995451

Certificate GIA 6551995451

Diamond specifications and retailer prices

From $640 SGD
As of November 6, 2026
Save $1,761 SGD (73%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,400 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.5ct natural marquise diamond

This 0.5ct 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 6551995451. Listed at 19 retailers as of November 5, 2026, with prices from $640 to $2,400, a $1,761 spread on the same certified stone. NZ Jewellers lists it at $2,400. 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

0.50
Carat
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6551995451
Dimensions7.36 × 4.39 × 2.48 mm
L/W Ratio1.68
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
7.36 mm4.39 mm0.50 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceStrong
CertificateGIA 6551995451
Side View
Table 61.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 56.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,400 SGD|Low: $640 SGD|High: $2,498 SGD|Avg: $1,047 SGD|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 6, 2026
Retailer 4$640 SGD
Retailer 5$706 SGD
Retailer 13$765 SGD
Retailer 8$782 SGD
Retailer 9$796 SGD
Retailer 3$824 SGD
Retailer 15$824 SGD
Retailer 10$883 SGD
Retailer 18$883 SGD
Retailer 12$930 SGD
Retailer 6$933 SGD
Retailer 2$934 SGD
Retailer 17$959 SGD
Retailer 7$1,012 SGD
Retailer 11$1,125 SGD
Retailer 14$1,182 SGD
Retailer 16$1,776 SGD
NZ Jewellers$2,400 SGD

26 data points across 18 retailers

19 retailers$640 SGD to $2,400 SGD

A
Cheapest Retailer
-
$640 SGD
B+
Retailer 2
-
$706 SGD
View
Final sale: no returns
B+
Retailer 3
-
$765 SGD
View
B+
Retailer 4
-
$782 SGD
View
Retailer 5
-
$796 SGD
View
Price last confirmed 10 days ago
B+
Retailer 6
-
$824 SGD
View
Retailer 7
-
$824 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$883 SGD
View
Retailer 9
-
$883 SGD
View
Price last confirmed 19 days ago
B+
Retailer 10
-
$930 SGD
View
B+
Retailer 11
-
$933 SGD
View
B+
Retailer 12
-
$934 SGD
View
B
Retailer 13
-
$959 SGD
View
B
Retailer 14
-
$1,012 SGD
View
B
Retailer 15
-
$1,125 SGD
View
B
Retailer 16
-
$1,182 SGD
View
Retailer 17
-
$1,197 SGD
View
Price last confirmed 33 days ago
Retailer 18
-
$1,776 SGD
View
Price last confirmed 8 days ago
Most Expensive
C
NZ Jewellers
a37c93f1-97a8-4566-98a8-e8a598bbe4cb · Nov 5
$2,400 SGD
$1,873 USD
View
18 more retailers have this diamond
Prices start from $640 SGDSave up to $1,761 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
0.50ct Marquise
$640 SGD