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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2566009790

Certificate GIA 2566009790

Diamond specifications and retailer prices

From €2,360 EUR
$2,637 USD
As of October 30, 2026
Save €2,455 EUR (51%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €4,816 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 2566009790. Listed at 16 retailers as of October 30, 2026, with prices from €2,360 to €4,816, a €2,455 spread on the same certified stone. NZ Jewellers lists it at €4,816. 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
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566009790
Dimensions6.62 × 5.00 × 3.43 mm
L/W Ratio1.32
Culet sizeNone
Key to symbols
Etch Channel, Feather, Crystal, Indented Natural, Natural
Top View
6.62 mm5.00 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566009790
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €4,816 EUR|Low: €2,360 EUR|High: €4,978 EUR|Avg: €3,103 EUR|-3.3%
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
October 31, 2026
Retailer 6€2,360 EUR
Retailer 3€2,476 EUR
Retailer 7€2,551 EUR
Retailer 4€2,690 EUR
Retailer 12€2,704 EUR
Retailer 13€2,764 EUR
Retailer 15€2,764 EUR
Retailer 10€2,864 EUR
Retailer 14€2,871 EUR
Retailer 11€3,030 EUR
Retailer 8€3,064 EUR
Retailer 5€3,106 EUR
Retailer 9€3,189 EUR
Retailer 2€3,397 EUR
Retailer 16€4,647 EUR
NZ Jewellers€4,816 EUR

29 data points across 16 retailers

16 retailers€2,360 EUR to €4,816 EUR

A
Cheapest Retailer
-
€2,360 EUR
$2,637 USD
A
Retailer 2
-
€2,476 EUR
$2,766 USD
View
B+
Retailer 3
-
€2,551 EUR
$2,850 USD
View
Final sale: no returns
B+
Retailer 4
-
€2,690 EUR
$3,005 USD
View
B+
Retailer 5
-
€2,704 EUR
£2,379 GBP
View
B+
Retailer 6
-
€2,764 EUR
$3,088 USD
View
B+
Retailer 7
-
€2,764 EUR
$3,088 USD
View
B+
Retailer 8
-
€2,864 EUR
£2,519 GBP
View
B+
Retailer 9
-
€2,871 EUR
$3,207 USD
View
B+
Retailer 10
-
€3,030 EUR
View
Retailer 11
-
€3,064 EUR
A$5,266 AUD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
€3,106 EUR
$3,470 USD
View
B+
Retailer 13
-
€3,189 EUR
$3,563 USD
View
B+
Retailer 14
-
€3,397 EUR
ZAR 61,316 ZAR
View
B
Retailer 15
-
€4,647 EUR
£4,088 GBP
View
Most Expensive
B
NZ Jewellers
6f4cbdf4-17be-487f-844a-3f5eb4e11e4a · Oct 30
€4,816 EUR
$5,380 USD
View
15 more retailers have this diamond
Prices start from €2,360 EURSave up to €2,455 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
1.00ct Radiant
€2,360 EUR