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Marquise|Natural|GIA

1.21ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 6551248081

Certificate GIA 6551248081

Diamond specifications and retailer prices

From $3,547 SGD
As of November 4, 2026
Save $2,795 SGD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,343 SGD at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural marquise diamond

This 1.21ct 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 6551248081. Listed at 12 retailers as of November 4, 2026, with prices from $3,547 to $6,343, a $2,795 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,343. 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

1.21
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle38.4°
OriginNatural
Grading LabGIA
CertificateGIA 6551248081
Dimensions11.26 × 5.48 × 3.32 mm
L/W Ratio2.05
Top View
11.26 mm5.48 mm1.21 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551248081
Side View
Table 58.0%Crown 39.8°Girdle: MED-THKPavilion 38.4°Culet: NoneDepth 60.5%

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 4
Current: $4,142 SGD|Low: $3,547 SGD|High: $6,862 SGD|Avg: $4,564 SGD|-6.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 7, 2026
Retailer 6$3,547 SGD
Retailer 5$3,633 SGD
Retailer 7$3,826 SGD
Retailer 3$3,906 SGD
Retailer 1$4,142 SGD
Retailer 2$4,273 SGD
Retailer 8$4,550 SGD
Retailer 9$4,561 SGD
Retailer 10$4,669 SGD
Retailer 4$4,716 SGD
Wholesale Diamonds Direct$6,343 SGD

41 data points across 11 retailers

12 retailers$3,547 SGD to $6,343 SGD

A
Cheapest Retailer
-
$3,547 SGD
A
Retailer 2
-
$3,633 SGD
View
A
Retailer 3
-
$3,826 SGD
View
B+
Retailer 4
-
$3,906 SGD
View
A
Retailer 5
-
$4,142 SGD
View
B+
Retailer 6
-
$4,273 SGD
View
B+
Retailer 7
-
$4,550 SGD
View
B+
Retailer 8
-
$4,561 SGD
View
B+
Retailer 9
-
$4,669 SGD
View
B+
Retailer 10
-
$4,716 SGD
View
B
Retailer 11
-
$5,056 SGD
View
Most Expensive
B
Wholesale Diamonds Direct
378733586 · Nov 6
$6,343 SGD
$4,949 USD
View
11 more retailers have this diamond
Prices start from $3,547 SGDSave up to $2,795 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
1.21ct Marquise
$3,547 SGD