Radiant|Natural|GIA

1.01ct D SI1 Radiant Natural Diamond

ID • D/SI1 • GIA 2557812240

Certificate GIA 2557812240

Diamond specifications and retailer prices

From €2,108 EUR
As of November 6, 2026
Save €2,047 EUR (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €5,124 EUR at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.01ct natural radiant diamond

This 1.01ct 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 2557812240. Listed at 16 retailers as of November 4, 2026, with a 97% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle52.31°
Pavilion angle30.09°
OriginNatural
Grading LabGIA
CertificateGIA 2557812240
Dimensions4.69 × 7.12 × 3.22 mm
L/W Ratio1.52
Culet sizeNone
Key to symbols
Crystal, Cloud, Knot, Feather, Needle
Top View
4.69 mm7.12 mm1.01 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2557812240
Side View
Table 67.0%Crown 52.31°Girdle: STK-THKPavilion 30.09°Culet: NoneDepth 68.7%

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 6
Current: €2,132 EUR|Low: €1,766 EUR|High: €4,346 EUR|Avg: €2,636 EUR|-11.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 5€2,108 EUR
Retailer 1€2,132 EUR
Retailer 4€2,173 EUR
Retailer 8€2,249 EUR
Retailer 2€2,373 EUR
Retailer 10€2,451 EUR
Retailer 3€2,492 EUR
Retailer 7€2,504 EUR
Retailer 9€2,746 EUR
Retailer 6€4,155 EUR

45 data points across 10 retailers

16 retailers€2,108 EUR to €4,155 EUR

A
Cheapest Retailer
-
€2,108 EUR
A
Retailer 2
-
€2,132 EUR
View
A
Retailer 3
-
€2,173 EUR
View
Final sale: no returns
A
Retailer 4
-
€2,249 EUR
View
A
Retailer 5
-
€2,373 EUR
View
Retailer 6
-
€2,451 EUR
View
Price last confirmed 37 days ago
Retailer 7
-
€2,451 EUR
View
Price last confirmed 22 days ago
A
Retailer 8
-
€2,492 EUR
View
B+
Retailer 9
-
€2,504 EUR
View
Retailer 10
-
€2,545 EUR
View
Price last confirmed 38 days ago
Retailer 11
-
€2,746 EUR
View
Price last confirmed 31 days ago
Retailer 12
-
€2,828 EUR
View
Price last confirmed 62 days ago
Retailer 13
-
€2,828 EUR
View
Price last confirmed 39 days ago
Retailer 14
-
€2,828 EUR
View
Price last confirmed 53 days ago
B
Retailer 15
-
€4,155 EUR
View
Most Expensive
NZ Jewellers
8745b152-c77d-4b17-94a5-a33cef344093 · Sep 30
€5,124 EUR
$5,721 USD
View
Price last confirmed 37 days ago
15 more retailers have this diamond
Prices start from €2,108 EURSave up to €2,047 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
1.01ct Radiant
€2,108 EUR