CaratHunter
Plans
Round|Natural|GIA

1.21ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 2564084734

Certificate GIA 2564084734

Diamond specifications and retailer prices

From $1,658 SGD
As of October 31, 2026
Save $1,517 SGD (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,175 SGD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2564084734. Listed at 13 retailers as of October 26, 2026, with prices from $1,658 to $3,175, a $1,517 spread on the same certified stone. Wholesale Diamonds Direct lists it at $3,175. 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
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2564084734
Dimensions6.76 × 6.80 × 4.26 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.76 mm6.80 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2564084734
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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: Oct 31
Current: $2,146 SGD|Low: $1,658 SGD|High: $3,465 SGD|Avg: $2,367 SGD|-7.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Wholesale Diamonds Direct
October 31, 2026
Retailer 11$1,658 SGD
Retailer 7$1,927 SGD
Retailer 8$1,960 SGD
Retailer 9$1,962 SGD
Retailer 3$2,098 SGD
Retailer 4$2,120 SGD
Retailer 1$2,146 SGD
Retailer 10$2,148 SGD
Retailer 12$2,327 SGD
Retailer 5$2,517 SGD
Retailer 2$2,584 SGD
Retailer 6$2,724 SGD
Wholesale Diamonds Direct$3,175 SGD

30 data points across 13 retailers

13 retailers$1,658 SGD to $3,175 SGD

A
Cheapest Retailer
-
$1,658 SGD
A
Retailer 2
-
$1,927 SGD
$1,507 USD
View
A
Retailer 3
-
$1,960 SGD
$1,533 USD
View
A
Retailer 4
-
$1,962 SGD
$1,535 USD
View
A
Retailer 5
-
$2,098 SGD
View
A
Retailer 6
-
$2,120 SGD
$1,658 USD
View
A
Retailer 7
-
$2,146 SGD
£1,322 GBP
View
A
Retailer 8
-
$2,148 SGD
$1,680 USD
View
A
Retailer 9
-
$2,327 SGD
$1,820 USD
View
A
Retailer 10
-
$2,517 SGD
£1,550 GBP
View
A
Retailer 11
-
$2,584 SGD
$2,022 USD
View
B+
Retailer 12
-
$2,724 SGD
€2,029 EUR
View
Most Expensive
B+
Wholesale Diamonds Direct
570927854 · Oct 26
$3,175 SGD
$2,484 USD
View
12 more retailers have this diamond
Prices start from $1,658 SGDSave up to $1,517 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 Round
$1,658 SGD