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Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 2527321233

Certificate GIA 2527321233

Diamond specifications and retailer prices

From €3,354 EUR
As of November 5, 2026
Save €3,330 EUR (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €6,684 EUR at MOH London · As of November 4, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2527321233. Listed at 15 retailers as of November 4, 2026, with prices from €3,354 to €6,684, a €3,330 spread on the same certified stone. MOH London lists it at €6,684. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2527321233
Dimensions6.17 × 6.13 × 4.22 mm
L/W Ratio1.01
Top View
6.17 mm6.13 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2527321233
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.9%

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: €6,684 EUR|Low: €2,904 EUR|High: €6,783 EUR|Avg: €4,359 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 7, 2026
Retailer 9€3,354 EUR
Retailer 3€3,356 EUR
Retailer 8€3,485 EUR
Retailer 11€3,812 EUR
Retailer 6€4,035 EUR
Retailer 2€4,142 EUR
Retailer 10€4,241 EUR
Retailer 4€4,467 EUR
Retailer 7€4,503 EUR
Retailer 5€5,134 EUR
MOH London€6,684 EUR

44 data points across 11 retailers

15 retailers€3,354 EUR to €6,684 EUR

A
Cheapest Retailer
-
€3,354 EUR
A
Retailer 2
-
€3,356 EUR
View
A
Retailer 3
-
€3,485 EUR
View
Final sale: no returns
A
Retailer 4
-
€3,618 EUR
View
A
Retailer 5
-
€3,794 EUR
View
Retailer 6
-
€3,812 EUR
View
Price last confirmed 13 days ago
A
Retailer 7
-
€3,940 EUR
View
A
Retailer 8
-
€4,035 EUR
View
A
Retailer 9
-
€4,142 EUR
View
Retailer 10
-
€4,241 EUR
View
Price last confirmed 29 days ago
Retailer 11
-
€4,416 EUR
View
Price last confirmed 12 days ago
A
Retailer 12
-
€4,467 EUR
View
A
Retailer 13
-
€4,503 EUR
View
B+
Retailer 14
-
€5,134 EUR
View
Most Expensive
B
MOH London
6C9A6D878 · Nov 4
€6,684 EUR
£5,876 GBP
View
14 more retailers have this diamond
Prices start from €3,354 EURSave up to €3,330 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
1.51ct Radiant
€3,354 EUR