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Radiant|Natural|GIA

1.50ct I SI1 Radiant Natural Diamond

GD • I/SI1 • GIA 2507747553

Certificate GIA 2507747553

Diamond specifications and retailer prices

From €5,804 EUR
$6,510 USD
As of October 28, 2026
Save €6,714 EUR (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €12,518 EUR at NZ Jewellers · As of October 30, 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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2507747553. Listed at 19 retailers as of October 28, 2026, with prices from €5,804 to €12,518, a €6,714 spread on the same certified stone. NZ Jewellers lists it at €12,518. 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

1.50
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2507747553
Dimensions8.11 × 5.77 × 3.98 mm
L/W Ratio1.41
Top View
8.11 mm5.77 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507747553
Side View
Table 64.0%CrownGirdle: ThickPavilionCulet: NoneDepth 68.9%

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: Oct 28
Current: €12,518 EUR|Low: €5,804 EUR|High: €12,518 EUR|Avg: €7,857 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 8€5,804 EUR
Retailer 3€6,259 EUR
Retailer 11€6,259 EUR
Retailer 10€6,780 EUR
Retailer 9€6,885 EUR
Retailer 4€7,066 EUR
Retailer 7€7,178 EUR
Retailer 2€7,740 EUR
Retailer 6€9,195 EUR
Retailer 5€10,431 EUR
NZ Jewellers€12,518 EUR

45 data points across 11 retailers

19 retailers€5,804 EUR to €12,518 EUR

B+
Cheapest Retailer
-
€5,804 EUR
$6,510 USD
B+
Retailer 2
-
€5,914 EUR
$6,633 USD
View
B
Retailer 3
-
€6,259 EUR
$7,020 USD
View
B
Retailer 4
-
€6,259 EUR
$7,020 USD
View
B
Retailer 5
-
€6,311 EUR
$7,079 USD
View
B
Retailer 6
-
€6,780 EUR
$7,605 USD
View
B
Retailer 7
-
€6,885 EUR
$7,722 USD
View
B
Retailer 8
-
€7,066 EUR
£6,240 GBP
View
Retailer 9
-
€7,178 EUR
A$12,386 AUD
View
Price last confirmed 11 days ago
B
Retailer 10
-
€7,419 EUR
$8,321 USD
View
B
Retailer 11
-
€7,480 EUR
$8,390 USD
View
B
Retailer 12
-
€7,480 EUR
$8,390 USD
View
B
Retailer 13
-
€7,538 EUR
$8,454 USD
View
B
Retailer 14
-
€7,730 EUR
$8,670 USD
View
B
Retailer 15
-
€7,740 EUR
View
B
Retailer 16
-
€7,824 EUR
$8,775 USD
View
B
Retailer 17
-
€9,195 EUR
ZAR 166,605 ZAR
View
B
Retailer 18
-
€10,431 EUR
£9,212 GBP
View
Most Expensive
C
NZ Jewellers
d28598f7-8273-41f0-a3c3-53f2e777a7d0 · Oct 30
€12,518 EUR
$14,040 USD
View
18 more retailers have this diamond
Prices start from €5,804 EURSave up to €6,714 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+
1.50ct Radiant
€5,804 EUR