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Marquise|Natural|GIA

1.02ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 3565590413

Certificate GIA 3565590413

Diamond specifications and retailer prices

From $3,179 SGD
As of November 1, 2026
Save $2,564 SGD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $5,742 SGD at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

About this 1.02ct natural marquise diamond

This 1.02ct 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 3565590413. Listed at 12 retailers as of November 1, 2026, with prices from $3,179 to $5,742, a $2,564 spread on the same certified stone. Helzberg Diamonds lists it at $5,742. 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

1.02
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle38.17°
OriginNatural
Grading LabGIA
CertificateGIA 3565590413
Dimensions10.96 × 5.24 × 3.04 mm
L/W Ratio2.09
Culet sizeNone
Top View
10.96 mm5.24 mm1.02 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565590413
Side View
Table 59.0%Crown 35.6°Girdle: STK-THKPavilion 38.17°Culet: NDepth 58.0%

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 1
Current: $5,742 SGD|Low: $3,179 SGD|High: $5,742 SGD|Avg: $3,985 SGD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 4$3,179 SGD
Retailer 8$3,282 SGD
Retailer 9$3,314 SGD
Retailer 7$3,339 SGD
Retailer 5$3,605 SGD
Retailer 12$3,636 SGD
Retailer 10$3,946 SGD
Retailer 11$4,058 SGD
Retailer 6$4,188 SGD
Retailer 2$4,293 SGD
Retailer 3$5,393 SGD
Helzberg Diamonds$5,742 SGD

9 data points across 12 retailers

12 retailers$3,179 SGD to $5,742 SGD

A
Cheapest Retailer
-
$3,179 SGD
A
Retailer 2
-
$3,282 SGD
View
B+
Retailer 3
-
$3,314 SGD
View
B+
Retailer 4
-
$3,339 SGD
View
B+
Retailer 5
-
$3,605 SGD
View
B+
Retailer 6
-
$3,636 SGD
View
B+
Retailer 7
-
$3,946 SGD
View
B+
Retailer 8
-
$4,058 SGD
View
B+
Retailer 9
-
$4,188 SGD
View
B+
Retailer 10
-
$4,293 SGD
View
Retailer 11
-
$5,393 SGD
View
Price last confirmed 19 days ago
Most Expensive
B
Helzberg Diamonds
XZRJLMLLPGKHJ · Nov 3
$5,742 SGD
$4,482 USD
View
11 more retailers have this diamond
Prices start from $3,179 SGDSave up to $2,564 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
1.02ct Marquise
$3,179 SGD