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Marquise|Natural|GIA

1.01ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 1553986435

Certificate GIA 1553986435

Diamond specifications and retailer prices

From $3,141 SGD
As of November 5, 2026
Save $2,572 SGD (45%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,713 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 D 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 1553986435. Listed at 11 retailers as of November 5, 2026, with prices from $3,141 to $5,713, a $2,572 spread on the same certified stone. Helzberg Diamonds lists it at $5,713. 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
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.53°
Pavilion angle40.82°
OriginNatural
Grading LabGIA
CertificateGIA 1553986435
Dimensions9.99 × 5.27 × 3.33 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.99 mm5.27 mm1.01 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553986435
Side View
Table 59.0%Crown 37.53°Girdle: STK-THKPavilion 40.82°Culet: NoneDepth 63.1%

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 5
Current: $5,713 SGD|Low: $3,123 SGD|High: $5,920 SGD|Avg: $3,995 SGD|-3.5%
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$3,141 SGD
Retailer 11$3,205 SGD
Retailer 6$3,325 SGD
Retailer 3$3,335 SGD
Retailer 4$3,533 SGD
Retailer 10$3,619 SGD
Retailer 8$3,897 SGD
Retailer 9$4,041 SGD
Retailer 2$4,265 SGD
Retailer 7$5,432 SGD
Helzberg Diamonds$5,713 SGD

44 data points across 11 retailers

11 retailers$3,141 SGD to $5,713 SGD

A
Cheapest Retailer
-
$3,141 SGD
A
Retailer 2
-
$3,205 SGD
View
A
Retailer 3
-
$3,325 SGD
View
A
Retailer 4
-
$3,335 SGD
View
A
Retailer 5
-
$3,533 SGD
View
A
Retailer 6
-
$3,619 SGD
View
A
Retailer 7
-
$3,897 SGD
View
A
Retailer 8
-
$4,041 SGD
View
A
Retailer 9
-
$4,265 SGD
View
B+
Retailer 10
-
$5,432 SGD
View
Most Expensive
B
Helzberg Diamonds
XZRHLLJPOMKJL · Nov 6
$5,713 SGD
$4,473 USD
View
10 more retailers have this diamond
Prices start from $3,141 SGDSave up to $2,572 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
$3,141 SGD