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Round|Natural|GIA

1.21ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6565200380

Certificate GIA 6565200380

Diamond specifications and retailer prices

From $1,894 USD
As of November 6, 2026
Save $3,373 USD (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,267 USD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6565200380. Listed at 21 retailers as of November 5, 2026, with prices from $1,894 to $5,267, a $3,373 spread on the same certified stone. NZ Jewellers lists it at $5,267. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6565200380
Dimensions6.76 × 6.82 × 4.22 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
6.76 mm6.82 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6565200380
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $5,267 USD|Low: $1,894 USD|High: $5,267 USD|Avg: $2,914 USD
NZ Jewellers
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
November 6, 2026
Retailer 15$1,894 USD
Retailer 2$1,971 USD
Retailer 11$2,007 USD
Retailer 14$2,290 USD
Retailer 3$2,345 USD
Retailer 8$2,377 USD
Retailer 4$2,519 USD
Retailer 6$2,519 USD
Retailer 5$2,636 USD
Retailer 9$2,650 USD
Retailer 7$2,907 USD
Retailer 10$3,075 USD
Retailer 12$3,125 USD
Retailer 13$4,401 USD
NZ Jewellers$5,267 USD

23 data points across 15 retailers

21 retailers$1,894 USD to $5,267 USD

A
Cheapest Retailer
-
$1,894 USD
A
Retailer 2
-
$1,971 USD
View
A
Retailer 3
-
$2,007 USD
View
B+
Retailer 4
-
$2,290 USD
View
B+
Retailer 5
-
$2,345 USD
View
B+
Retailer 6
-
$2,345 USD
View
B+
Retailer 7
-
$2,364 USD
View
B+
Retailer 8
-
$2,377 USD
View
Retailer 9
-
$2,519 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$2,519 USD
View
B+
Retailer 11
-
$2,590 USD
View
B+
Retailer 12
-
$2,633 USD
View
B+
Retailer 13
-
$2,636 USD
View
B+
Retailer 14
-
$2,650 USD
View
B+
Retailer 15
-
$2,659 USD
View
Retailer 16
-
$2,822 USD
View
Price last confirmed 30 days ago
B
Retailer 17
-
$2,907 USD
View
B+
Retailer 18
-
$3,075 USD
View
B+
Retailer 19
-
$3,125 USD
View
B
Retailer 20
-
$4,401 USD
View
Most Expensive
B
NZ Jewellers
3949d498-801d-49b3-ac99-dac1d4bfa867 · Nov 5
$5,267 USD
View
20 more retailers have this diamond
Prices start from $1,894 USDSave up to $3,373 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
$1,894 USD