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Marquise|Natural|GIA

1.21ct D SI1 Marquise Natural Diamond

EX • D/SI1

Diamond specifications and retailer prices

From $6,459 SGD
As of November 1, 2026
Save $7,846 SGD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $14,305 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural marquise diamond

This 1.21ct 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. Listed at 10 retailers as of November 1, 2026, with prices from $6,459 to $14,305, a $7,846 spread on the same certified stone. NZ Jewellers lists it at $14,305. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions10.20 × 5.74 × 3.29 mm
L/W Ratio1.78
Top View
10.20 mm5.74 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 68.0%CrownGirdle: ThickPavilionCuletDepth 57.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $14,305 SGD|Low: $6,459 SGD|High: $16,108 SGD|Avg: $8,928 SGD|-11.2%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 8$6,459 SGD
Retailer 7$7,336 SGD
Retailer 3$7,749 SGD
Retailer 4$7,749 SGD
Retailer 5$7,749 SGD
Retailer 10$7,799 SGD
Retailer 2$8,298 SGD
Retailer 9$8,665 SGD
Retailer 6$8,942 SGD
NZ Jewellers$14,305 SGD

30 data points across 10 retailers

10 retailers$6,459 SGD to $14,305 SGD

B+
Cheapest Retailer
-
$6,459 SGD
B
Retailer 2
-
$7,336 SGD
View
Retailer 3
-
$7,749 SGD
View
Price last confirmed 9 days ago
B
Retailer 4
-
$7,749 SGD
View
B
Retailer 5
-
$7,749 SGD
View
B
Retailer 6
-
$7,799 SGD
View
B
Retailer 7
-
$8,298 SGD
View
B
Retailer 8
-
$8,665 SGD
View
B
Retailer 9
-
$8,942 SGD
View
Most Expensive
C
NZ Jewellers
e9cb07d0-8cb8-4821-aee2-af32967f0286 · Nov 5
$14,305 SGD
$11,162 USD
View
9 more retailers have this diamond
Prices start from $6,459 SGDSave up to $7,846 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.

B+
1.21ct Marquise
$6,459 SGD