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Marquise|Natural|GIA

1.01ct E SI2 Marquise Natural Diamond

EX • E/SI2 • GIA 1567186401

Certificate GIA 1567186401

Diamond specifications and retailer prices

From $3,284 SGD
As of November 4, 2026
Save $2,965 SGD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $6,249 SGD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.01ct natural marquise diamond

This 1.01ct natural marquise sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1567186401. Listed at 14 retailers as of November 4, 2026, with prices from $3,284 to $6,249, a $2,965 spread on the same certified stone. Helzberg Diamonds lists it at $6,249. 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

1.01
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.84°
Pavilion angle39.7°
OriginNatural
Grading LabGIA
CertificateGIA 1567186401
Dimensions9.95 × 5.19 × 3.34 mm
L/W Ratio1.92
Culet sizeNone
Top View
9.95 mm5.19 mm1.01 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1567186401
Side View
Table 57.0%Crown 39.84°Girdle: MED-THKPavilion 39.7°Culet: NoneDepth 64.4%

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: $6,249 SGD|Low: $3,284 SGD|High: $6,491 SGD|Avg: $4,314 SGD|-3.7%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 6, 2026
Retailer 11$3,284 SGD
Retailer 4$3,381 SGD
Retailer 8$3,433 SGD
Retailer 6$3,645 SGD
Retailer 5$3,704 SGD
Retailer 7$3,814 SGD
Retailer 3$3,956 SGD
Retailer 13$4,239 SGD
Retailer 10$4,266 SGD
Retailer 14$4,365 SGD
Retailer 2$4,367 SGD
Retailer 9$4,557 SGD
Retailer 12$5,906 SGD
Helzberg Diamonds$6,249 SGD

28 data points across 14 retailers

14 retailers$3,284 SGD to $6,249 SGD

A
Cheapest Retailer
-
$3,284 SGD
A
Retailer 2
-
$3,381 SGD
View
A
Retailer 3
-
$3,433 SGD
View
A
Retailer 4
-
$3,645 SGD
View
A
Retailer 5
-
$3,704 SGD
View
A
Retailer 6
-
$3,814 SGD
View
A
Retailer 7
-
$3,956 SGD
View
A
Retailer 8
-
$4,239 SGD
View
A
Retailer 9
-
$4,266 SGD
View
A
Retailer 10
-
$4,365 SGD
View
A
Retailer 11
-
$4,367 SGD
View
B+
Retailer 12
-
$4,557 SGD
View
B+
Retailer 13
-
$5,906 SGD
View
Most Expensive
B+
Helzberg Diamonds
XZRHLMNHOMKGH · Nov 6
$6,249 SGD
$4,892 USD
View
13 more retailers have this diamond
Prices start from $3,284 SGDSave up to $2,965 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
1.01ct Marquise
$3,284 SGD