CaratHunter
Plans
Cushion|Natural|GIA

1.21ct F SI1 Cushion Natural Diamond

EX • F/SI1 • GIA 6542610072

Certificate GIA 6542610072

Diamond specifications and retailer prices

From $3,050 SGD
As of November 6, 2026
Save $3,336 SGD (52%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,609 SGD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded F 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 6542610072. Listed at 14 retailers as of November 6, 2026, with a 109% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6542610072
Dimensions6.07 × 5.66 × 3.84 mm
L/W Ratio1.07
Top View
6.07 mm5.66 mm1.21 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6542610072
Side View
Table 70.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.9%

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 6
Current: $7,609 SGD|Low: $3,050 SGD|High: $7,634 SGD|Avg: $4,521 SGD|-0.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 7, 2026
Retailer 9$3,050 SGD
Retailer 12$3,490 SGD
Retailer 4$3,544 SGD
Retailer 7$3,697 SGD
Retailer 2$3,749 SGD
Retailer 5$3,861 SGD
Retailer 3$4,022 SGD
Retailer 8$4,074 SGD
Retailer 13$4,149 SGD
Retailer 10$4,470 SGD
Retailer 11$4,686 SGD
Retailer 6$6,386 SGD
Queensmith$7,609 SGD

24 data points across 13 retailers

14 retailers$3,050 SGD to $6,386 SGD

A
Cheapest Retailer
-
$3,050 SGD
B+
Retailer 2
-
$3,490 SGD
View
B+
Retailer 3
-
$3,544 SGD
View
Final sale: no returns
B+
Retailer 4
-
$3,551 SGD
View
B+
Retailer 5
-
$3,697 SGD
View
B+
Retailer 6
-
$3,749 SGD
View
Retailer 7
-
$3,861 SGD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
$4,022 SGD
View
B+
Retailer 9
-
$4,074 SGD
View
B+
Retailer 10
-
$4,149 SGD
View
B+
Retailer 11
-
$4,470 SGD
View
B+
Retailer 12
-
$4,686 SGD
View
B
Retailer 13
-
$6,386 SGD
View
Most Expensive
Queensmith
6542610072 · Oct 28
$7,609 SGD
£4,675 GBP
View
Price last confirmed 9 days ago
13 more retailers have this diamond
Prices start from $3,050 SGDSave up to $3,336 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 Cushion
$3,050 SGD