Radiant|Natural|GIA

1.00ct D SI2 Radiant Natural Diamond

ID • D/SI2 • GIA 1545627178

Certificate GIA 1545627178

Diamond specifications and retailer prices

From €2,098 EUR
As of November 6, 2026
Save €1,745 EUR (45%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €4,482 EUR at MOH London · As of October 29, 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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1545627178. Listed at 19 retailers as of November 6, 2026, with a 83% 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

1.00
Carat
D
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1545627178
Dimensions6.80 × 4.91 × 3.37 mm
L/W Ratio1.38
Culet sizeNone
Top View
6.80 mm4.91 mm1.00 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1545627178
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.6%

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: Nov 6
Current: €4,482 EUR|Low: €1,921 EUR|High: €4,511 EUR|Avg: €2,882 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 7€2,098 EUR
Retailer 4€2,114 EUR
Retailer 5€2,415 EUR
Retailer 6€2,618 EUR
Retailer 2€2,821 EUR
Retailer 8€3,095 EUR
Retailer 3€3,103 EUR
Retailer 9€3,172 EUR
MOH London€4,482 EUR

42 data points across 9 retailers

19 retailers€2,098 EUR to €3,842 EUR

A
Cheapest Retailer
-
€2,098 EUR
A
Retailer 2
-
€2,114 EUR
View
Final sale: no returns
A
Retailer 3
-
€2,163 EUR
View
A
Retailer 4
-
€2,171 EUR
View
A
Retailer 5
-
€2,279 EUR
View
Retailer 6
-
€2,415 EUR
View
Price last confirmed 9 days ago
B+
Retailer 7
-
€2,618 EUR
View
B+
Retailer 8
-
€2,620 EUR
View
B+
Retailer 9
-
€2,620 EUR
View
B+
Retailer 10
-
€2,640 EUR
View
B+
Retailer 11
-
€2,759 EUR
View
B+
Retailer 12
-
€2,759 EUR
View
B+
Retailer 13
-
€2,821 EUR
View
B+
Retailer 14
-
€2,848 EUR
View
Retailer 15
-
€3,095 EUR
View
Price last confirmed 15 days ago
B+
Retailer 16
-
€3,103 EUR
View
B+
Retailer 17
-
€3,232 EUR
View
B
Retailer 18
-
€3,842 EUR
View
Most Expensive
MOH London
D538187AC · Oct 29
€4,482 EUR
£3,940 GBP
View
Price last confirmed 9 days ago
18 more retailers have this diamond
Prices start from €2,098 EURSave up to €1,745 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
€2,098 EUR