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Round|Natural|GIA

1.50ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 1518584498

Certificate GIA 1518584498

Diamond specifications and retailer prices

From €3,383 EUR
$3,779 USD
As of October 30, 2026
Save €4,289 EUR (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €7,672 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1518584498. Listed at 21 retailers as of October 30, 2026, with prices from €3,383 to €7,672, a €4,289 spread on the same certified stone. NZ Jewellers lists it at €7,672. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 1518584498
Dimensions7.32 × 7.35 × 4.55 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Girdle conditionFaceted
Key to symbols
Cavity, Crystal, Twinning Wisp, Feather, Etch Channel
Top View
7.32 mm7.35 mm1.50 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1518584498
Side View
Table 59.0%Crown 34°Girdle: STK-MEDPavilion 41.8°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €7,672 EUR|Low: €3,255 EUR|High: €7,672 EUR|Avg: €4,641 EUR
NZ Jewellers
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
Retailer 17
Retailer 18
Retailer 19
November 1, 2026
Retailer 3€3,383 EUR
Retailer 16€3,405 EUR
Retailer 10€3,477 EUR
Retailer 5€3,682 EUR
Retailer 18€3,777 EUR
Retailer 4€3,989 EUR
Retailer 17€3,989 EUR
Retailer 19€3,989 EUR
Retailer 14€4,351 EUR
Retailer 2€4,484 EUR
Retailer 11€4,533 EUR
Retailer 7€4,556 EUR
Retailer 8€4,603 EUR
Retailer 13€4,683 EUR
Retailer 9€4,862 EUR
Retailer 6€4,877 EUR
Retailer 15€5,413 EUR
Retailer 12€7,014 EUR
NZ Jewellers€7,672 EUR

34 data points across 19 retailers

21 retailers€3,383 EUR to €7,672 EUR

A
Cheapest Retailer
-
€3,383 EUR
$3,779 USD
A
Retailer 2
-
€3,405 EUR
$3,804 USD
View
A
Retailer 3
-
€3,477 EUR
$3,885 USD
View
B+
Retailer 4
-
€3,682 EUR
$4,114 USD
View
Final sale: no returns
B+
Retailer 5
-
€3,777 EUR
$4,220 USD
View
B+
Retailer 6
-
€3,989 EUR
$4,457 USD
View
B+
Retailer 7
-
€3,989 EUR
$4,457 USD
View
B+
Retailer 8
-
€3,989 EUR
$4,457 USD
View
B+
Retailer 9
-
€4,351 EUR
£3,827 GBP
View
B+
Retailer 10
-
€4,484 EUR
$5,010 USD
View
Retailer 11
-
€4,533 EUR
A$7,792 AUD
View
Price last confirmed 22 days ago
B
Retailer 12
-
€4,556 EUR
$5,090 USD
View
B
Retailer 13
-
€4,574 EUR
$5,110 USD
View
B
Retailer 14
-
€4,603 EUR
$5,142 USD
View
B+
Retailer 15
-
€4,683 EUR
View
B
Retailer 16
-
€4,726 EUR
$5,280 USD
View
Retailer 17
-
€4,862 EUR
$5,432 USD
View
Price last confirmed 9 days ago
B
Retailer 18
-
€4,877 EUR
£4,290 GBP
View
B
Retailer 19
-
€5,413 EUR
ZAR 97,691 ZAR
View
B
Retailer 20
-
€7,014 EUR
£6,170 GBP
View
Most Expensive
B
NZ Jewellers
7d3e9e2f-ec09-4aa1-a4fa-42166dbd9827 · Oct 30
€7,672 EUR
$8,571 USD
View
20 more retailers have this diamond
Prices start from €3,383 EURSave up to €4,289 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 Round
€3,383 EUR