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Cushion|Natural|GIA

1.21ct I SI2 Cushion Natural Diamond

GD • I/SI2 • GIA 5306799709

Certificate GIA 5306799709

Diamond specifications and retailer prices

From $2,275 SGD
HK$13,900 HKD
As of November 1, 2026
Save $3,075 SGD (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,350 SGD at MOH London · As of October 26, 2026
View at MOH London

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 SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 5306799709. Listed at 11 retailers as of October 26, 2026, with prices from $2,275 to $5,350, a $3,075 spread on the same certified stone. MOH London lists it at $5,350. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

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

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 5306799709
Dimensions6.36 × 5.55 × 3.94 mm
L/W Ratio1.15
Top View
6.36 mm5.55 mm1.21 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5306799709
Side View
Table 57.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 71.1%

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: $5,350 SGD|Low: $2,243 SGD|High: $5,399 SGD|Avg: $3,264 SGD|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 6$2,275 SGD
Retailer 9$2,755 SGD
Retailer 8$2,815 SGD
Retailer 11$2,879 SGD
Retailer 4$2,936 SGD
Retailer 2$3,015 SGD
Retailer 5$3,258 SGD
Retailer 10$3,289 SGD
Retailer 12$3,312 SGD
Retailer 3$3,675 SGD
Retailer 7$3,808 SGD
MOH London$5,350 SGD

26 data points across 12 retailers

11 retailers$2,275 SGD to $5,350 SGD

B+
Cheapest Retailer
-
$2,275 SGD
HK$13,900 HKD
B+
Retailer 2
-
$2,755 SGD
$2,154 USD
View
B+
Retailer 3
-
$2,815 SGD
$2,201 USD
View
Final sale: no returns
B+
Retailer 4
-
$2,879 SGD
$2,251 USD
View
B+
Retailer 5
-
$3,015 SGD
£1,856 GBP
View
B
Retailer 6
-
$3,154 SGD
View
B
Retailer 7
-
$3,258 SGD
£2,006 GBP
View
B
Retailer 8
-
$3,289 SGD
$2,572 USD
View
B
Retailer 9
-
$3,312 SGD
$2,590 USD
View
B
Retailer 10
-
$3,808 SGD
€2,836 EUR
View
Most Expensive
C
MOH London
6F4A4A01C · Oct 26
$5,350 SGD
£3,294 GBP
View
10 more retailers have this diamond
Prices start from $2,275 SGDSave up to $3,075 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
$2,275 SGD