Round|Natural|HRD

1.21ct J SI2 Round Natural Diamond

EX • J/SI2 • HRD 250000092403

Certificate HRD 250000092403

Diamond specifications and retailer prices

From €1,758 EUR
$1,964 USD
As of October 30, 2026
Save €1,651 EUR (48%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €4,068 EUR at NZ Jewellers · As of September 28, 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 HRD 250000092403. Listed at 13 retailers as of October 30, 2026, with a 94% 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 angle36.6°
Pavilion angle40.9°
OriginNatural
Grading LabHRD
CertificateHRD 250000092403
Dimensions6.74 × 6.80 × 4.28 mm
L/W Ratio1.01
Top View
6.74 mm6.80 mm1.21 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateHRD 250000092403
Side View
Table 56.0%Crown 36.6°GirdlePavilion 40.9°Culet: NoneDepth 63.1%

Caratlytics Score

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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 30
Current: €2,419 EUR|Low: €1,646 EUR|High: €3,450 EUR|Avg: €2,342 EUR|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4€1,758 EUR
Retailer 3€1,796 EUR
Retailer 5€1,856 EUR
Retailer 6€1,946 EUR
Retailer 7€2,070 EUR
Retailer 1€2,419 EUR
Retailer 8€3,144 EUR
Retailer 2€3,409 EUR

24 data points across 8 retailers

13 retailers€1,758 EUR to €3,409 EUR

A
Cheapest Retailer
-
€1,758 EUR
$1,964 USD
B+
Retailer 2
-
€1,856 EUR
$2,074 USD
View
Retailer 3
-
€1,946 EUR
$2,174 USD
View
Price last confirmed 55 days ago
Retailer 4
-
€1,946 EUR
$2,174 USD
View
Price last confirmed 16 days ago
Retailer 5
-
€1,946 EUR
$2,174 USD
View
Price last confirmed 24 days ago
Retailer 6
-
€2,035 EUR
$2,274 USD
View
Price last confirmed 16 days ago
B+
Retailer 7
-
€2,070 EUR
$2,313 USD
View
Retailer 8
-
€2,246 EUR
$2,509 USD
View
Price last confirmed 55 days ago
Retailer 9
-
€2,246 EUR
$2,509 USD
View
Price last confirmed 23 days ago
B
Retailer 10
-
€2,419 EUR
View
B
Retailer 11
-
€3,409 EUR
£2,999 GBP
View
Retailer 12
-
€4,068 EUR
$4,545 USD
View
Price last confirmed 60 days ago
Most Expensive
NZ Jewellers
33755be7-11a6-4969-be68-4e4f14b16e46 · Sep 28
€4,068 EUR
$4,545 USD
View
Price last confirmed 34 days ago
12 more retailers have this diamond
Prices start from €1,758 EURSave up to €1,651 EUR

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
€1,758 EUR