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Marquise|Natural|GIA

1.00ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 6552638482

Certificate GIA 6552638482

Diamond specifications and retailer prices

From $2,165 SGD
As of November 6, 2026
Save $3,852 SGD (64%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $6,017 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552638482. Listed at 15 retailers as of November 5, 2026, with prices from $2,165 to $6,017, a $3,852 spread on the same certified stone. NZ Jewellers lists it at $6,017. 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

1.00
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552638482
Dimensions9.55 × 4.89 × 3.38 mm
L/W Ratio1.95
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
9.55 mm4.89 mm1.00 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6552638482
Side View
Table 63.0%CrownGirdle: XTKPavilionCulet: NoneDepth 69.1%

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: $6,017 SGD|Low: $2,165 SGD|High: $6,017 SGD|Avg: $3,283 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
November 6, 2026
Retailer 10$2,165 SGD
Retailer 7$2,295 SGD
Retailer 4$2,655 SGD
Retailer 2$2,830 SGD
Retailer 3$2,878 SGD
Retailer 5$3,003 SGD
Retailer 12$3,012 SGD
Retailer 8$3,158 SGD
Retailer 11$3,321 SGD
Retailer 6$3,573 SGD
Retailer 9$5,042 SGD
NZ Jewellers$6,017 SGD

28 data points across 12 retailers

15 retailers$2,165 SGD to $6,017 SGD

A
Cheapest Retailer
-
$2,165 SGD
A
Retailer 2
-
$2,295 SGD
View
B+
Retailer 3
-
$2,626 SGD
View
B+
Retailer 4
-
$2,655 SGD
View
Final sale: no returns
A
Retailer 5
-
$2,830 SGD
View
A
Retailer 6
-
$2,878 SGD
View
B+
Retailer 7
-
$2,909 SGD
View
B+
Retailer 8
-
$3,003 SGD
View
B+
Retailer 9
-
$3,012 SGD
View
B+
Retailer 10
-
$3,146 SGD
View
B+
Retailer 11
-
$3,158 SGD
View
B+
Retailer 12
-
$3,321 SGD
View
B+
Retailer 13
-
$3,573 SGD
View
B
Retailer 14
-
$5,042 SGD
View
Most Expensive
B
NZ Jewellers
d60821ea-313c-472b-a024-58fc69bba7d5 · Nov 5
$6,017 SGD
$4,695 USD
View
14 more retailers have this diamond
Prices start from $2,165 SGDSave up to $3,852 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
1.00ct Marquise
$2,165 SGD