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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 6505943659

Certificate GIA 6505943659

Diamond specifications and retailer prices

From €2,786 EUR
As of November 5, 2026
Save €2,900 EUR (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €5,687 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct 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 6505943659. Listed at 15 retailers as of November 5, 2026, with prices from €2,786 to €5,687, a €2,900 spread on the same certified stone. NZ Jewellers lists it at €5,687. 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

1.00
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle44.82°
Pavilion angle31.51°
OriginNatural
Grading LabGIA
CertificateGIA 6505943659
Dimensions6.61 × 5.10 × 3.30 mm
L/W Ratio1.30
Top View
6.61 mm5.10 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6505943659
Side View
Table 70.0%Crown 44.82°GirdlePavilion 31.51°Culet: NDepth 64.8%

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 5
Current: €3,378 EUR|Low: €2,786 EUR|High: €5,391 EUR|Avg: €3,583 EUR|+0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8€2,786 EUR
Retailer 6€2,897 EUR
Retailer 2€3,090 EUR
Retailer 1€3,378 EUR
Retailer 9€3,389 EUR
Retailer 7€3,496 EUR
Retailer 3€3,799 EUR
Retailer 4€3,983 EUR
Retailer 5€5,313 EUR

40 data points across 9 retailers

15 retailers€2,786 EUR to €5,687 EUR

B+
Cheapest Retailer
-
€2,786 EUR
B+
Retailer 2
-
€2,897 EUR
View
B+
Retailer 3
-
€3,090 EUR
View
B
Retailer 4
-
€3,135 EUR
View
Retailer 5
-
€3,264 EUR
View
Price last confirmed 9 days ago
B+
Retailer 6
-
€3,264 EUR
View
B+
Retailer 7
-
€3,378 EUR
View
B
Retailer 8
-
€3,389 EUR
View
B
Retailer 9
-
€3,394 EUR
View
Retailer 10
-
€3,496 EUR
View
Price last confirmed 30 days ago
B
Retailer 11
-
€3,766 EUR
View
B
Retailer 12
-
€3,799 EUR
View
B
Retailer 13
-
€3,983 EUR
View
B
Retailer 14
-
€5,313 EUR
View
Most Expensive
B
NZ Jewellers
8d68ffc7-03de-4063-a5a4-5e05efd635a3 · Nov 5
€5,687 EUR
$6,349 USD
View
14 more retailers have this diamond
Prices start from €2,786 EURSave up to €2,900 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+
1.00ct Radiant
€2,786 EUR