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Radiant|Natural|GIA

1.21ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 1443103827

Certificate GIA 1443103827

Diamond specifications and retailer prices

From €3,719 EUR
As of November 6, 2026
Save €4,515 EUR (55%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: €8,234 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.21ct natural radiant diamond

This 1.21ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1443103827. Listed at 29 retailers as of November 5, 2026, with prices from €3,719 to €8,234, a €4,515 spread on the same certified stone. NZ Jewellers lists it at €8,234. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1443103827
Dimensions6.70 × 5.35 × 3.73 mm
L/W Ratio1.25
Culet sizeNone
Top View
6.70 mm5.35 mm1.21 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1443103827
Side View
Table 66.0%CrownGirdle: ThickPavilionCulet: NoneDepth 69.6%

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: Nov 6
Current: €4,756 EUR|Low: €3,921 EUR|High: €7,935 EUR|Avg: €5,214 EUR|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 8€3,921 EUR
Retailer 6€4,151 EUR
Retailer 1€4,756 EUR
Retailer 2€4,776 EUR
Retailer 7€4,963 EUR
Retailer 3€5,539 EUR
Retailer 4€6,006 EUR
Retailer 5€7,820 EUR

37 data points across 8 retailers

29 retailers€3,719 EUR to €8,234 EUR

B+
Cheapest Retailer
-
€3,719 EUR
B+
Retailer 2
-
€3,846 EUR
View
B+
Retailer 3
-
€3,889 EUR
View
B+
Retailer 4
-
€3,921 EUR
View
Final sale: no returns
B+
Retailer 5
-
€3,936 EUR
View
B+
Retailer 6
-
€4,060 EUR
View
B+
Retailer 7
-
€4,151 EUR
View
B+
Retailer 8
-
€4,181 EUR
View
B+
Retailer 9
-
€4,196 EUR
View
B
Retailer 10
-
€4,419 EUR
View
Retailer 11
-
€4,460 EUR
View
Price last confirmed 9 days ago
B
Retailer 12
-
€4,460 EUR
View
B
Retailer 13
-
€4,460 EUR
View
B
Retailer 14
-
€4,537 EUR
View
B
Retailer 15
-
€4,756 EUR
View
B
Retailer 16
-
€4,776 EUR
View
B
Retailer 17
-
€4,861 EUR
View
Retailer 18
-
€4,963 EUR
View
Price last confirmed 29 days ago
B
Retailer 19
-
€4,998 EUR
View
B
Retailer 20
-
€4,998 EUR
View
B
Retailer 21
-
€5,146 EUR
View
B
Retailer 22
-
€5,168 EUR
View
Retailer 23
-
€5,432 EUR
View
Price last confirmed 15 days ago
B
Retailer 24
-
€5,539 EUR
View
B
Retailer 25
-
€5,670 EUR
View
B
Retailer 26
-
€6,006 EUR
View
B
Retailer 27
-
€7,129 EUR
View
B
Retailer 28
-
€7,820 EUR
View
Most Expensive
B
NZ Jewellers
9a27df5b-79d0-4380-aa40-91ee1a47bf2e · Nov 5
€8,234 EUR
$9,193 USD
View
28 more retailers have this diamond
Prices start from €3,719 EURSave up to €4,515 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 Radiant
€3,719 EUR