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Marquise|Natural|GIA

1.21ct G SI1 Marquise Natural Diamond

EX • G/SI1

Diamond specifications and retailer prices

From $7,089 SGD
As of November 5, 2026
Save $1,515 SGD (18%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $13,764 SGD at NZ Jewellers · As of October 21, 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 G colour (near-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 18 retailers as of November 5, 2026, with a relatively tight 21% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
Dimensions10.67 × 5.42 × 3.36 mm
L/W Ratio1.97
Top View
10.67 mm5.42 mm1.21 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA
Side View
Table 55.0%CrownGirdle: Very ThickPavilionCulet: NDepth 62.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $13,764 SGD|Low: $7,089 SGD|High: $13,764 SGD|Avg: $8,396 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7$7,089 SGD
Retailer 4$7,456 SGD
Retailer 5$7,456 SGD
Retailer 6$7,456 SGD
Retailer 9$7,476 SGD
Retailer 10$7,787 SGD
Retailer 2$7,984 SGD
Retailer 8$8,306 SGD
Retailer 3$8,603 SGD
NZ Jewellers$13,764 SGD

23 data points across 10 retailers

18 retailers$7,089 SGD to $8,603 SGD

B
Cheapest Retailer
-
$7,089 SGD
Retailer 2
-
$7,456 SGD
View
Price last confirmed 9 days ago
Retailer 3
-
$7,456 SGD
View
Price last confirmed 22 days ago
Retailer 4
-
$7,456 SGD
View
Price last confirmed 9 days ago
Retailer 5
-
$7,456 SGD
View
Price last confirmed 16 days ago
Retailer 6
-
$7,456 SGD
View
Price last confirmed 9 days ago
Retailer 7
-
$7,456 SGD
View
Price last confirmed 18 days ago
Retailer 8
-
$7,456 SGD
View
Price last confirmed 22 days ago
B
Retailer 9
-
$7,476 SGD
View
Retailer 10
-
$7,787 SGD
View
Price last confirmed 9 days ago
B
Retailer 11
-
$7,984 SGD
View
B
Retailer 12
-
$8,306 SGD
View
Retailer 13
-
$8,603 SGD
View
Price last confirmed 11 days ago
Retailer 14
-
$8,603 SGD
View
Price last confirmed 17 days ago
Retailer 15
-
$8,603 SGD
View
Price last confirmed 62 days ago
B
Retailer 16
-
$8,603 SGD
View
Retailer 17
-
$13,764 SGD
View
Price last confirmed 11 days ago
Most Expensive
NZ Jewellers
c2a38539-61b8-46f5-a17a-5b47b4f89cf5 · Oct 21
$13,764 SGD
$10,740 USD
View
Price last confirmed 17 days ago
17 more retailers have this diamond
Prices start from $7,089 SGDSave up to $1,515 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
$7,089 SGD