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Marquise|Natural|GIA

0.50ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 2546398602

Certificate GIA 2546398602

Diamond specifications and retailer prices

From $975 SGD
As of October 31, 2026
Save $1,465 SGD (60%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,250 SGD at NZ Jewellers · As of October 30, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2546398602. Listed at 22 retailers as of October 31, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.50
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
Pavilion angle41.1°
OriginNatural
Grading LabGIA
CertificateGIA 2546398602
Dimensions8.16 × 4.24 × 2.58 mm
L/W Ratio1.92
Top View
8.16 mm4.24 mm0.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2546398602
Side View
Table 62.0%CrownGirdle: MED-THKPavilion 41.1°Culet: NoneDepth 60.7%

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: Oct 31
Current: $3,250 SGD|Low: $928 SGD|High: $3,250 SGD|Avg: $1,736 SGD
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
November 2, 2026
Retailer 10$975 SGD
Retailer 11$1,114 SGD
Retailer 3$1,207 SGD
Retailer 13$1,253 SGD
Retailer 9$1,400 SGD
Retailer 5$1,499 SGD
Retailer 6$1,558 SGD
Retailer 2$1,727 SGD
Retailer 12$1,742 SGD
Retailer 8$2,056 SGD
Retailer 4$2,159 SGD
Retailer 7$2,440 SGD
NZ Jewellers$3,250 SGD

44 data points across 13 retailers

22 retailers$975 SGD to $2,440 SGD

A
Cheapest Retailer
-
$975 SGD
B+
Retailer 2
-
$1,114 SGD
$871 USD
View
Final sale: no returns
B+
Retailer 3
-
$1,193 SGD
$933 USD
View
B+
Retailer 4
-
$1,194 SGD
$934 USD
View
B+
Retailer 5
-
$1,201 SGD
A$1,445 AUD
View
B+
Retailer 6
-
$1,207 SGD
$944 USD
View
B+
Retailer 7
-
$1,207 SGD
$944 USD
View
B+
Retailer 8
-
$1,219 SGD
$953 USD
View
B+
Retailer 9
-
$1,253 SGD
$980 USD
View
B+
Retailer 10
-
$1,393 SGD
$1,089 USD
View
B
Retailer 11
-
$1,400 SGD
$1,095 USD
View
B
Retailer 12
-
$1,471 SGD
$1,150 USD
View
B
Retailer 13
-
$1,471 SGD
$1,150 USD
View
B
Retailer 14
-
$1,499 SGD
$1,172 USD
View
B
Retailer 15
-
$1,522 SGD
$1,190 USD
View
B
Retailer 16
-
$1,558 SGD
£959 GBP
View
B
Retailer 17
-
$1,727 SGD
€1,286 EUR
View
Retailer 18
-
$1,742 SGD
A$2,096 AUD
View
Price last confirmed 29 days ago
B
Retailer 19
-
$2,056 SGD
ZAR 25,977 ZAR
View
B
Retailer 20
-
$2,159 SGD
CA$2,345 CAD
View
B
Retailer 21
-
$2,440 SGD
£1,502 GBP
View
Most Expensive
NZ Jewellers
d6e4a16b-be2e-46e6-b827-23a2faa1cf14 · Oct 30
$3,250 SGD
$2,541 USD
View
Price under review
21 more retailers have this diamond
Prices start from $975 SGDSave up to $1,465 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
$975 SGD