Radiant|Natural|GIA

1.50ct I SI2 Radiant Natural Diamond

EX • I/SI2 • GIA 7551478920

Certificate GIA 7551478920

Diamond specifications and retailer prices

From €4,595 EUR
As of November 1, 2026
Save €3,971 EUR (46%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €9,725 EUR at NZ Jewellers · As of September 20, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551478920. Listed at 23 retailers as of November 1, 2026, with a 86% 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

1.50
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551478920
Dimensions7.54 × 5.73 × 3.92 mm
L/W Ratio1.32
Culet sizeNone
Top View
7.54 mm5.73 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551478920
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

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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 1
Current: €5,537 EUR|Low: €4,357 EUR|High: €8,768 EUR|Avg: €6,043 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 3€4,595 EUR
Retailer 2€4,903 EUR
Retailer 5€5,198 EUR
Retailer 12€5,209 EUR
Retailer 16€5,268 EUR
Retailer 15€5,332 EUR
Retailer 1€5,537 EUR
Retailer 9€5,577 EUR
Retailer 6€5,876 EUR
Retailer 8€5,876 EUR
Retailer 13€5,947 EUR
Retailer 4€6,073 EUR
Retailer 11€6,351 EUR
Retailer 7€6,412 EUR
Retailer 14€8,512 EUR
Retailer 10€8,566 EUR

32 data points across 16 retailers

23 retailers€4,595 EUR to €8,566 EUR

A
Cheapest Retailer
-
€4,595 EUR
B+
Retailer 2
-
€4,903 EUR
View
B+
Retailer 3
-
€5,198 EUR
View
B+
Retailer 4
-
€5,209 EUR
View
Retailer 5
-
€5,268 EUR
View
Price last confirmed 46 days ago
Retailer 6
-
€5,268 EUR
View
Price last confirmed 38 days ago
Retailer 7
-
€5,268 EUR
View
Price last confirmed 37 days ago
B+
Retailer 8
-
€5,332 EUR
View
B+
Retailer 9
-
€5,537 EUR
View
B+
Retailer 10
-
€5,577 EUR
View
B+
Retailer 11
-
€5,876 EUR
View
B+
Retailer 12
-
€5,876 EUR
View
B+
Retailer 13
-
€5,947 EUR
View
B
Retailer 14
-
€6,073 EUR
View
Retailer 15
-
€6,078 EUR
View
Price last confirmed 62 days ago
Retailer 16
-
€6,078 EUR
View
Price last confirmed 39 days ago
Retailer 17
-
€6,078 EUR
View
Price last confirmed 46 days ago
B
Retailer 18
-
€6,351 EUR
View
Retailer 19
-
€6,412 EUR
View
Price last confirmed 15 days ago
Retailer 20
-
€8,512 EUR
View
Price last confirmed 11 days ago
B
Retailer 21
-
€8,566 EUR
View
Retailer 22
-
€9,725 EUR
View
Price last confirmed 38 days ago
Most Expensive
NZ Jewellers
ce6e203c-c250-486e-8e7a-41ef796e6950 · Sep 20
€9,725 EUR
$10,858 USD
View
Price last confirmed 47 days ago
22 more retailers have this diamond
Prices start from €4,595 EURSave up to €3,971 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
1.50ct Radiant
€4,595 EUR