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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 €2,785 EUR
$3,111 USD
As of October 30, 2026
Save €2,898 EUR (51%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €5,683 EUR at NZ Jewellers · As of October 30, 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 October 30, 2026, with prices from €2,785 to €5,683, a €2,898 spread on the same certified stone. NZ Jewellers lists it at €5,683. 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
Color
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: Oct 30
Current: €3,105 EUR|Low: €2,785 EUR|High: €5,388 EUR|Avg: €3,668 EUR|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8€2,785 EUR
Retailer 6€2,896 EUR
Retailer 1€3,105 EUR
Retailer 9€3,387 EUR
Retailer 2€3,409 EUR
Retailer 7€3,494 EUR
Retailer 4€3,819 EUR
Retailer 3€4,009 EUR
Retailer 5€5,353 EUR

41 data points across 9 retailers

15 retailers€2,785 EUR to €5,683 EUR

B+
Cheapest Retailer
-
€2,785 EUR
$3,111 USD
B+
Retailer 2
-
€2,896 EUR
$3,235 USD
View
B+
Retailer 3
-
€3,105 EUR
£2,732 GBP
View
B
Retailer 4
-
€3,133 EUR
$3,500 USD
View
B+
Retailer 5
-
€3,262 EUR
$3,644 USD
View
B+
Retailer 6
-
€3,262 EUR
$3,644 USD
View
B
Retailer 7
-
€3,387 EUR
$3,784 USD
View
B
Retailer 8
-
€3,392 EUR
$3,789 USD
View
B+
Retailer 9
-
€3,409 EUR
£2,999 GBP
View
Retailer 10
-
€3,494 EUR
A$6,005 AUD
View
Price last confirmed 23 days ago
B
Retailer 11
-
€3,764 EUR
$4,205 USD
View
B
Retailer 12
-
€3,819 EUR
View
B
Retailer 13
-
€4,009 EUR
ZAR 72,360 ZAR
View
B
Retailer 14
-
€5,353 EUR
£4,709 GBP
View
Most Expensive
B
NZ Jewellers
8d68ffc7-03de-4063-a5a4-5e05efd635a3 · Oct 30
€5,683 EUR
$6,349 USD
View
14 more retailers have this diamond
Prices start from €2,785 EURSave up to €2,898 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
€2,785 EUR