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Round|Natural|GIA

1.21ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6495819176

Certificate GIA 6495819176

Diamond specifications and retailer prices

From €2,146 EUR
As of November 4, 2026
Save €2,716 EUR (56%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €4,862 EUR 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 6495819176. Listed at 15 retailers as of November 4, 2026, with prices from €2,146 to €4,862, a €2,716 spread on the same certified stone. NZ Jewellers lists it at €4,862. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6495819176
Dimensions6.79 × 6.77 × 4.22 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
6.79 mm6.77 mm1.21 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6495819176
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €4,862 EUR|Low: €1,877 EUR|High: €4,862 EUR|Avg: €2,815 EUR|+4.8%
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
Retailer 16
November 7, 2026
Retailer 6€2,024 EUR
Retailer 4€2,146 EUR
Retailer 9€2,194 EUR
Retailer 14€2,239 EUR
Retailer 13€2,325 EUR
Retailer 16€2,325 EUR
Retailer 3€2,433 EUR
Retailer 2€2,446 EUR
Retailer 7€2,583 EUR
Retailer 5€2,622 EUR
Retailer 15€2,683 EUR
Retailer 11€2,838 EUR
Retailer 10€2,881 EUR
Retailer 8€4,029 EUR
Retailer 12€4,074 EUR
NZ Jewellers€4,862 EUR

36 data points across 16 retailers

15 retailers€2,146 EUR to €4,862 EUR

B+
Cheapest Retailer
-
€2,146 EUR
Final sale: no returns
B+
Retailer 2
-
€2,194 EUR
View
B+
Retailer 3
-
€2,239 EUR
View
B+
Retailer 4
-
€2,325 EUR
View
Retailer 5
-
€2,325 EUR
View
Price last confirmed 9 days ago
B+
Retailer 6
-
€2,433 EUR
View
B+
Retailer 7
-
€2,446 EUR
View
Retailer 8
-
€2,583 EUR
View
Price last confirmed 26 days ago
Retailer 9
-
€2,622 EUR
View
Price last confirmed 26 days ago
B+
Retailer 10
-
€2,683 EUR
View
B+
Retailer 11
-
€2,838 EUR
View
B
Retailer 12
-
€2,881 EUR
View
Retailer 13
-
€4,029 EUR
View
Price last confirmed 26 days ago
B
Retailer 14
-
€4,074 EUR
View
Most Expensive
B
NZ Jewellers
6f08d3b7-6352-41ba-bfd4-e59c6e82067d · Nov 5
€4,862 EUR
$5,428 USD
View
14 more retailers have this diamond
Prices start from €2,146 EURSave up to €2,716 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.

B+
1.21ct Round
€2,146 EUR