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Radiant|Natural|GIA

1.51ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2215189168

Certificate GIA 2215189168

Diamond specifications and retailer prices

From €11,087 EUR
£9,791 GBP
As of November 2, 2026
Save €4,921 EUR (31%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €16,007 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two 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 2215189168. Listed at 4 retailers as of November 1, 2026, with prices from €11,087 to €16,007, a €4,921 spread on the same certified stone. MOH London lists it at €16,007. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2215189168
Dimensions8.51 × 5.05 × 3.44 mm
L/W Ratio1.69
Culet sizeNone
Cert comments
Pinpoints are not shown.
Top View
8.51 mm5.05 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2215189168
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.2%

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: Nov 2
Current: €16,007 EUR|Low: €9,414 EUR|High: €16,200 EUR|Avg: €12,152 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 5€9,414 EUR
Retailer 3€11,087 EUR
Retailer 4€11,149 EUR
Retailer 2€12,911 EUR
MOH London€16,007 EUR

44 data points across 5 retailers

4 retailers€11,087 EUR to €16,007 EUR

B+
Cheapest Retailer
-
€11,087 EUR
£9,791 GBP
Retailer 2
-
€11,149 EUR
A$19,238 AUD
View
Price last confirmed 9 days ago
B
Retailer 3
-
€12,911 EUR
View
Most Expensive
B
MOH London
9113D6DB2 · Nov 1
€16,007 EUR
£14,137 GBP
View
3 more retailers have this diamond
Prices start from €11,087 EURSave up to €4,921 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+
1.51ct Radiant
€11,087 EUR