Round|Natural|GIA

1.21ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1568139211

Certificate GIA 1568139211

Diamond specifications and retailer prices

From $3,158 CAD
$2,261 USD
As of October 31, 2026
Save $943 CAD (23%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,595 CAD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

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 1568139211. Listed at 13 retailers as of October 31, 2026, with a 30% 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
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 1568139211
Dimensions6.79 × 6.75 × 4.25 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
6.79 mm6.75 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1568139211
Side View
Table 58.0%Crown 35°Girdle: Slightly ThickPavilion 41.4°Culet: NDepth 62.8%

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: Oct 31
Current: $3,158 CAD|Low: $2,679 CAD|High: $5,594 CAD|Avg: $3,454 CAD|+12.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 10$2,679 CAD
Retailer 5$2,868 CAD
Retailer 7$2,961 CAD
Retailer 1$3,158 CAD
Retailer 9$3,172 CAD
Retailer 2$3,213 CAD
Retailer 3$4,009 CAD
Retailer 6$4,044 CAD
Retailer 4$4,101 CAD
Retailer 8$5,194 CAD

34 data points across 10 retailers

13 retailers$3,158 CAD to $4,101 CAD

Retailer 1
-
$2,679 CAD
$1,918 USD
Price last confirmed 8 days ago
Retailer 2
-
$2,868 CAD
£1,617 GBP
View
Price last confirmed 7 days ago
Retailer 3
-
$2,961 CAD
$2,120 USD
View
Price last confirmed 7 days ago
Retailer 4
-
$3,154 CAD
$2,258 USD
View
Price last confirmed 27 days ago
B+
Retailer 5
-
$3,158 CAD
$2,261 USD
View
Retailer 6
-
$3,172 CAD
$2,271 USD
View
Price last confirmed 12 days ago
Retailer 7
-
$3,238 CAD
$2,318 USD
View
Price last confirmed 31 days ago
Retailer 8
-
$3,640 CAD
$2,606 USD
View
Price last confirmed 27 days ago
B
Retailer 9
-
$4,009 CAD
$2,870 USD
View
Retailer 10
-
$4,044 CAD
€2,757 EUR
View
Price last confirmed 7 days ago
B
Retailer 11
-
$4,101 CAD
£2,312 GBP
View
Retailer 12
-
$5,194 CAD
£2,928 GBP
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
a97379d0-ccd1-40c8-a18a-99acab17243b · Oct 3
$6,595 CAD
$4,721 USD
View
Price last confirmed 28 days ago
12 more retailers have this diamond
Prices start from $3,158 CADSave up to $943 CAD

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 Round
$3,158 CAD