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Marquise|Natural|GIA

1.02ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 6551493839

Certificate GIA 6551493839

Diamond specifications and retailer prices

From $4,589 SGD
As of November 3, 2026
Save $1,756 SGD (28%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,346 SGD at Yorxs · As of October 31, 2026
View at Yorxs

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551493839. Listed at 11 retailers as of October 31, 2026, with prices from $4,589 to $6,346, a $1,756 spread on the same certified stone. Yorxs lists it at $6,346. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.69°
Pavilion angle39.13°
OriginNatural
Grading LabGIA
CertificateGIA 6551493839
Dimensions9.85 × 5.19 × 3.25 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.85 mm5.19 mm1.02 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551493839
Side View
Table 59.0%Crown 39.69°Girdle: STK-THKPavilion 39.13°Culet: NoneDepth 62.5%

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 3
Current: $5,471 SGD|Low: $2,797 SGD|High: $7,319 SGD|Avg: $5,250 SGD
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Yorxs
November 2, 2026
Retailer 3$2,797 SGD
Retailer 2$3,909 SGD
Retailer 6$4,172 SGD
Retailer 4$4,566 SGD
Retailer 11$4,589 SGD
Retailer 7$4,667 SGD
Retailer 10$4,729 SGD
Retailer 15$4,747 SGD
Retailer 5$4,951 SGD
Retailer 1$5,471 SGD
Retailer 14$5,712 SGD
Retailer 9$6,042 SGD
Retailer 12$6,060 SGD
Retailer 13$6,060 SGD
Retailer 16$6,265 SGD
Retailer 17$6,266 SGD
Yorxs$6,346 SGD
Retailer 8$7,319 SGD

15 data points across 18 retailers

11 retailers$4,589 SGD to $6,346 SGD

A
Cheapest Retailer
-
$4,589 SGD
A
Retailer 2
-
$4,667 SGD
View
B+
Retailer 3
-
$4,729 SGD
View
Final sale: no returns
B+
Retailer 4
-
$4,747 SGD
View
B+
Retailer 5
-
$4,825 SGD
View
B+
Retailer 6
-
$5,471 SGD
View
B+
Retailer 7
-
$5,712 SGD
View
B+
Retailer 8
-
$6,060 SGD
View
B+
Retailer 9
-
$6,060 SGD
View
B+
Retailer 10
-
$6,265 SGD
View
Most Expensive
B+
Yorxs
597991641 · Oct 31
$6,346 SGD
€4,717 EUR
View
10 more retailers have this diamond
Prices start from $4,589 SGDSave up to $1,756 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
$4,589 SGD