Round|Natural|GIA

1.21ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 3535398953

Certificate GIA 3535398953

Diamond specifications and retailer prices

From $1,850 USD
₹176,233 INR
As of October 30, 2026
Save $1,465 USD (44%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,559 USD at MOH London · As of October 8, 2026
View at MOH London

About this 1.21ct natural round diamond

This 1.21ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3535398953. Listed at 15 retailers as of October 29, 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
E
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 3535398953
Dimensions6.84 × 6.81 × 4.24 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Top View
6.84 mm6.81 mm1.21 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3535398953
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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 30
Current: $4,559 USD|Low: $1,850 USD|High: $5,590 USD|Avg: $2,925 USD|-0.1%
MOH London
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
Retailer 15
Retailer 16
October 30, 2026
Retailer 11$1,850 USD
Retailer 10$1,942 USD
Retailer 5$2,303 USD
Retailer 3$2,309 USD
Retailer 4$2,578 USD
Retailer 16$2,712 USD
Retailer 7$2,719 USD
Retailer 8$2,760 USD
Retailer 6$2,790 USD
Retailer 2$2,831 USD
Retailer 9$2,874 USD
Retailer 12$2,990 USD
Retailer 14$3,193 USD
Retailer 13$3,315 USD
MOH London$4,559 USD
Retailer 15$5,562 USD

25 data points across 16 retailers

15 retailers$1,850 USD to $3,315 USD

A
Cheapest Retailer
-
$1,850 USD
₹176,233 INR
A
Retailer 2
-
$1,942 USD
View
Final sale: no returns
Retailer 3
-
$2,303 USD
£1,813 GBP
View
Price last confirmed 30 days ago
Retailer 4
-
$2,309 USD
View
Price last confirmed 21 days ago
Retailer 5
-
$2,578 USD
View
Price last confirmed 23 days ago
Retailer 6
-
$2,702 USD
View
Price last confirmed 60 days ago
Retailer 7
-
$2,719 USD
View
Price last confirmed 21 days ago
Retailer 8
-
$2,760 USD
View
Price last confirmed 20 days ago
A
Retailer 9
-
$2,831 USD
View
A
Retailer 10
-
$2,874 USD
€2,737 EUR
View
A
Retailer 11
-
$2,990 USD
View
Retailer 12
-
$3,118 USD
View
Price last confirmed 53 days ago
B+
Retailer 13
-
$3,193 USD
View
A
Retailer 14
-
$3,315 USD
View
Most Expensive
MOH London
9FE46CAFF · Oct 8
$4,559 USD
£3,590 GBP
View
Price last confirmed 22 days ago
14 more retailers have this diamond
Prices start from $1,850 USDSave up to $1,465 USD

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
$1,850 USD