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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 $2,481 USD
As of November 1, 2026
Save $2,001 USD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,482 USD at Helzberg Diamonds · As of November 1, 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 $2,481 to $4,482, a $2,001 spread on the same certified stone. Helzberg Diamonds lists it at $4,482. 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
Color
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: $4,482 USD|Low: $2,481 USD|High: $4,482 USD|Avg: $3,109 USD
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 2, 2026
Retailer 4$2,481 USD
Retailer 8$2,562 USD
Retailer 9$2,587 USD
Retailer 7$2,606 USD
Retailer 5$2,791 USD
Retailer 12$2,839 USD
Retailer 10$3,080 USD
Retailer 11$3,168 USD
Retailer 6$3,269 USD
Retailer 2$3,356 USD
Retailer 3$4,210 USD
Helzberg Diamonds$4,482 USD

8 data points across 12 retailers

12 retailers$2,481 USD to $4,482 USD

A
Cheapest Retailer
-
$2,481 USD
A
Retailer 2
-
$2,562 USD
View
B+
Retailer 3
-
$2,587 USD
View
B+
Retailer 4
-
$2,606 USD
View
B+
Retailer 5
-
$2,791 USD
£2,197 GBP
View
B+
Retailer 6
-
$2,839 USD
SGD 3,836 SGD
View
B+
Retailer 7
-
$3,080 USD
View
B+
Retailer 8
-
$3,168 USD
View
B+
Retailer 9
-
$3,269 USD
View
B
Retailer 10
-
$3,356 USD
€3,196 EUR
View
Retailer 11
-
$4,210 USD
View
Price last confirmed 16 days ago
Most Expensive
B
Helzberg Diamonds
XZRJLMLLPGKHJ · Nov 1
$4,482 USD
View
11 more retailers have this diamond
Prices start from $2,481 USDSave up to $2,001 USD

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
$2,481 USD