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Cushion|Natural|GIA

1.21ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 5242003538

Certificate GIA 5242003538

Diamond specifications and retailer prices

From $2,839 SGD
As of November 7, 2026
Save $2,249 SGD (44%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $7,736 SGD at Reve Diamonds · As of October 16, 2026
View at Reve Diamonds

About this 1.21ct natural cushion diamond

This 1.21ct natural cushion sits in the classic one-carat band, graded I 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 5242003538. Listed at 12 retailers as of November 5, 2026, with a 79% 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle36.29°
OriginNatural
Grading LabGIA
CertificateGIA 5242003538
Dimensions7.05 × 5.51 × 3.84 mm
L/W Ratio1.28
Key to symbols
Crystal, Feather, Needle
Top View
7.05 mm5.51 mm1.21 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5242003538
Side View
Table 61.0%CrownGirdle: STK-VTKPavilion 36.29°Culet: NoneDepth 69.7%

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 7
Current: $5,088 SGD|Low: $1,870 SGD|High: $8,205 SGD|Avg: $3,939 SGD|+68.4%
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
Reve Diamonds
October 29, 2026
Retailer 2$1,870 SGD
Retailer 4$2,272 SGD
Retailer 6$2,494 SGD
Retailer 5$2,630 SGD
Retailer 7$3,790 SGD
Retailer 3$3,929 SGD
Retailer 14$4,561 SGD
Retailer 1$5,088 SGD
Retailer 13$6,435 SGD
Retailer 9$6,572 SGD
Retailer 10$6,607 SGD
Retailer 8$7,030 SGD
Retailer 12$7,420 SGD
Reve Diamonds$7,736 SGD
Retailer 11$8,205 SGD

33 data points across 15 retailers

12 retailers$2,839 SGD to $5,088 SGD

Retailer 1
-
$1,870 SGD
Price last confirmed 24 days ago
Retailer 2
-
$2,272 SGD
View
Price last confirmed 24 days ago
Retailer 3
-
$2,630 SGD
View
Price last confirmed 23 days ago
B+
Retailer 4
-
$2,839 SGD
View
Retailer 5
-
$3,742 SGD
View
Price last confirmed 14 days ago
Retailer 6
-
$3,790 SGD
View
Price last confirmed 12 days ago
Retailer 7
-
$3,929 SGD
View
Price last confirmed 24 days ago
Retailer 8
-
$4,561 SGD
View
Price last confirmed 23 days ago
B
Retailer 9
-
$5,088 SGD
View
Retailer 10
-
$6,435 SGD
View
Price last confirmed 22 days ago
Retailer 11
-
$6,572 SGD
View
Price last confirmed 22 days ago
Most Expensive
Reve Diamonds
E0B44E40B · Oct 16
$7,736 SGD
$6,036 USD
View
Price last confirmed 21 days ago
11 more retailers have this diamond
Prices start from $2,839 SGDSave up to $2,249 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 Cushion
$2,839 SGD