Marquise|Natural|GIA

1.03ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1543454523

Certificate GIA 1543454523

Diamond specifications and retailer prices

From $4,794 SGD
As of November 6, 2026
Save $4,046 SGD (46%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,577 SGD at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.03ct natural marquise diamond

This 1.03ct natural marquise sits in the classic one-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 1543454523. Listed at 10 retailers as of November 2, 2026, with a 84% 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

1.03
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.26°
Pavilion angle40.38°
OriginNatural
Grading LabGIA
CertificateGIA 1543454523
Dimensions10.15 × 5.29 × 3.30 mm
L/W Ratio1.92
Girdle conditionThick
Key to symbols
Twinning Wisp, Crystal, Cloud, Feather, Cavity, Needle
Top View
10.15 mm5.29 mm1.03 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1543454523
Side View
Table 61.0%Crown 36.26°GirdlePavilion 40.38°CuletDepth 62.4%

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: Nov 6
Current: $4,794 SGD|Low: $4,780 SGD|High: $9,128 SGD|Avg: $6,121 SGD|-2.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1$4,794 SGD
Retailer 3$5,156 SGD
Retailer 2$5,178 SGD
Retailer 5$5,783 SGD
Retailer 4$8,840 SGD

44 data points across 5 retailers

10 retailers$4,794 SGD to $8,840 SGD

A
Cheapest Retailer
-
$4,794 SGD
B+
Retailer 2
-
$5,156 SGD
View
B+
Retailer 3
-
$5,178 SGD
View
Retailer 4
-
$5,393 SGD
View
Price last confirmed 36 days ago
Retailer 5
-
$5,393 SGD
View
Price last confirmed 30 days ago
Retailer 6
-
$5,497 SGD
View
Price last confirmed 44 days ago
Retailer 7
-
$5,783 SGD
View
Price last confirmed 33 days ago
B
Retailer 8
-
$8,840 SGD
View
Retailer 9
-
$9,397 SGD
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
32dd2678-a98e-451e-9114-d73e996c069e · Sep 20
$9,577 SGD
$7,473 USD
View
Price last confirmed 46 days ago
9 more retailers have this diamond
Prices start from $4,794 SGDSave up to $4,046 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
1.03ct Marquise
$4,794 SGD