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Radiant|Natural|GIA

1.51ct I SI2 Radiant Natural Diamond

GD • I/SI2 • GIA 6525240450

Certificate GIA 6525240450

Diamond specifications and retailer prices

From €2,736 EUR
$3,069 USD
As of November 2, 2026
Save €3,264 EUR (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €6,000 EUR at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 6525240450. Listed at 14 retailers as of October 27, 2026, with prices from €2,736 to €6,000, a €3,264 spread on the same certified stone. NZ Jewellers lists it at €6,000. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6525240450
Dimensions7.34 × 5.63 × 4.06 mm
L/W Ratio1.30
Top View
7.34 mm5.63 mm1.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6525240450
Side View
Table 67.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 72.1%

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: €6,000 EUR|Low: €2,488 EUR|High: €6,000 EUR|Avg: €3,772 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6€2,706 EUR
Retailer 7€2,736 EUR
Retailer 9€3,120 EUR
Retailer 10€3,120 EUR
Retailer 8€3,240 EUR
Retailer 2€3,359 EUR
Retailer 4€3,523 EUR
Retailer 3€3,794 EUR
Retailer 5€5,760 EUR
NZ Jewellers€6,000 EUR

42 data points across 10 retailers

14 retailers€2,736 EUR to €6,000 EUR

Retailer 1
-
€2,706 EUR
$3,035 USD
Price last confirmed 8 days ago
B+
Retailer 2
-
€2,736 EUR
$3,069 USD
View
Final sale: no returns
B+
Retailer 3
-
€2,770 EUR
$3,107 USD
View
Retailer 4
-
€3,120 EUR
$3,499 USD
View
Price last confirmed 8 days ago
Retailer 5
-
€3,120 EUR
$3,499 USD
View
Price last confirmed 11 days ago
Retailer 6
-
€3,240 EUR
$3,634 USD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
€3,359 EUR
£2,967 GBP
View
B+
Retailer 8
-
€3,420 EUR
$3,836 USD
View
B+
Retailer 9
-
€3,523 EUR
£3,111 GBP
View
Retailer 10
-
€3,600 EUR
$4,038 USD
View
Price last confirmed 10 days ago
B+
Retailer 11
-
€3,794 EUR
View
Retailer 12
-
€3,899 EUR
$4,373 USD
View
Price last confirmed 10 days ago
B
Retailer 13
-
€5,760 EUR
£5,087 GBP
View
Most Expensive
B
NZ Jewellers
363558b4-d8ed-4fd6-9675-3dbf51520a58 · Oct 27
€6,000 EUR
$6,730 USD
View
13 more retailers have this diamond
Prices start from €2,736 EURSave up to €3,264 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
€2,736 EUR