Round|Natural|GIA

1.21ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1565410539

Certificate GIA 1565410539

Diamond specifications and retailer prices

From $1,991 USD
SGD 2,691 SGD
As of October 27, 2026
Save $847 USD (30%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,671 USD at Wholesale Diamonds Direct · As of October 23, 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 1565410539. Listed at 13 retailers as of October 27, 2026, with a 43% 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
FluorescenceMedium
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1565410539
Dimensions6.86 × 6.89 × 4.21 mm
L/W Ratio1.00
Culet sizeNone
Top View
6.86 mm6.89 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1565410539
Side View
Table 59.0%Crown 32.5°Girdle: MED-STKPavilion 41.6°Culet: NDepth 61.2%

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: Oct 27
Current: $1,991 USD|Low: $1,991 USD|High: $3,796 USD|Avg: $2,658 USD|-8.1%
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 27, 2026
Retailer 1$1,991 USD
Retailer 9$2,029 USD
Retailer 10$2,163 USD
Retailer 8$2,170 USD
Retailer 3$2,246 USD
Retailer 7$2,303 USD
Retailer 2$2,356 USD
Retailer 11$2,560 USD
Retailer 12$2,705 USD
Retailer 5$2,712 USD
Retailer 6$2,776 USD
Retailer 4$2,838 USD
Wholesale Diamonds Direct$3,671 USD

31 data points across 13 retailers

13 retailers$1,991 USD to $2,838 USD

A
Cheapest Retailer
-
$1,991 USD
SGD 2,691 SGD
A
Retailer 2
-
$2,029 USD
View
Retailer 3
-
$2,163 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
$2,170 USD
View
Retailer 5
-
$2,246 USD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
$2,303 USD
£1,813 GBP
View
B+
Retailer 7
-
$2,356 USD
SGD 3,184 SGD
View
Retailer 8
-
$2,560 USD
View
Price last confirmed 7 days ago
B
Retailer 9
-
$2,705 USD
View
B+
Retailer 10
-
$2,712 USD
View
B+
Retailer 11
-
$2,776 USD
€2,644 EUR
View
B
Retailer 12
-
$2,838 USD
£2,235 GBP
View
Most Expensive
Wholesale Diamonds Direct
570928002 · Oct 23
$3,671 USD
View
Price last confirmed 7 days ago
12 more retailers have this diamond
Prices start from $1,991 USDSave up to $847 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
$1,991 USD