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Marquise|Natural|GIA

1.03ct K SI2 Marquise Natural Diamond

EX • K/SI2 • GIA 1558637331

Certificate GIA 1558637331

Diamond specifications and retailer prices

From $2,067 SGD
As of November 4, 2026
Save $3,358 SGD (62%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,425 SGD at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558637331. Listed at 11 retailers as of November 4, 2026, with prices from $2,067 to $5,425, a $3,358 spread on the same certified stone. NZ Jewellers lists it at $5,425. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558637331
Dimensions10.33 × 5.25 × 3.28 mm
L/W Ratio1.97
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
10.33 mm5.25 mm1.03 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558637331
Side View
Table 61.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 62.5%

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 4
Current: $5,425 SGD|Low: $1,970 SGD|High: $5,638 SGD|Avg: $2,751 SGD|-3.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$2,067 SGD
Retailer 10$2,077 SGD
Retailer 9$2,224 SGD
Retailer 11$2,245 SGD
Retailer 2$2,275 SGD
Retailer 7$2,327 SGD
Retailer 4$2,382 SGD
Retailer 5$2,468 SGD
Retailer 8$2,566 SGD
Retailer 6$3,886 SGD
NZ Jewellers$5,425 SGD

35 data points across 11 retailers

11 retailers$2,067 SGD to $5,425 SGD

A
Cheapest Retailer
-
$2,067 SGD
A
Retailer 2
-
$2,077 SGD
View
A
Retailer 3
-
$2,224 SGD
View
Retailer 4
-
$2,245 SGD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$2,275 SGD
View
A
Retailer 6
-
$2,327 SGD
View
A
Retailer 7
-
$2,382 SGD
View
A
Retailer 8
-
$2,468 SGD
View
A
Retailer 9
-
$2,566 SGD
View
B
Retailer 10
-
$3,886 SGD
View
Most Expensive
B
NZ Jewellers
517901f1-8871-46ff-b3a7-85dfedceebc3 · Nov 5
$5,425 SGD
$4,247 USD
View
10 more retailers have this diamond
Prices start from $2,067 SGDSave up to $3,358 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
$2,067 SGD