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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 1567578478

Certificate GIA 1567578478

Diamond specifications and retailer prices

From €1,712 EUR
As of November 5, 2026
Save €1,597 EUR (48%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €3,309 EUR at MOH London · As of November 4, 2026
View at MOH London

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 1567578478. Listed at 10 retailers as of November 4, 2026, with prices from €1,712 to €3,309, a €1,597 spread on the same certified stone. MOH London lists it at €3,309. 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
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1567578478
Dimensions5.52 × 5.47 × 3.62 mm
L/W Ratio1.01
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Pinpoint, Indented Natural
Top View
5.52 mm5.47 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1567578478
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NDepth 66.2%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: €3,309 EUR|Low: €1,712 EUR|High: €3,336 EUR|Avg: €2,145 EUR|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 10€1,712 EUR
Retailer 4€1,837 EUR
Retailer 7€1,841 EUR
Retailer 9€1,917 EUR
Retailer 3€2,022 EUR
Retailer 2€2,057 EUR
Retailer 8€2,089 EUR
Retailer 6€2,312 EUR
Retailer 5€2,408 EUR
MOH London€3,309 EUR

16 data points across 10 retailers

10 retailers€1,712 EUR to €3,309 EUR

A
Cheapest Retailer
-
€1,712 EUR
A
Retailer 2
-
€1,837 EUR
View
A
Retailer 3
-
€1,841 EUR
View
A
Retailer 4
-
€1,917 EUR
View
A
Retailer 5
-
€2,022 EUR
View
A
Retailer 6
-
€2,057 EUR
View
A
Retailer 7
-
€2,089 EUR
View
A
Retailer 8
-
€2,312 EUR
View
B+
Retailer 9
-
€2,408 EUR
View
Most Expensive
B+
MOH London
456773F2E · Nov 4
€3,309 EUR
£2,909 GBP
View
9 more retailers have this diamond
Prices start from €1,712 EURSave up to €1,597 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
€1,712 EUR