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Round|Natural|GIA

1.50ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 1553731546

Certificate GIA 1553731546

Diamond specifications and retailer prices

From $3,020 USD
As of November 6, 2026
Save $3,662 USD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $6,961 USD at NZ Jewellers · As of September 28, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1553731546. Listed at 22 retailers as of November 2, 2026, with a 121% 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
J
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1553731546
Dimensions7.21 × 7.30 × 4.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Indented Natural
Top View
7.21 mm7.30 mm1.50 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553731546
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 63.2%

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: Nov 6
Current: $3,669 USD|Low: $3,020 USD|High: $6,762 USD|Avg: $4,166 USD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 9$3,020 USD
Retailer 3$3,169 USD
Retailer 7$3,517 USD
Retailer 10$3,595 USD
Retailer 1$3,669 USD
Retailer 2$3,688 USD
Retailer 6$3,802 USD
Retailer 5$4,010 USD
Retailer 4$4,492 USD
Retailer 8$6,682 USD

39 data points across 10 retailers

22 retailers$3,020 USD to $6,682 USD

A
Cheapest Retailer
-
$3,020 USD
A
Retailer 2
-
$3,169 USD
View
A
Retailer 3
-
$3,517 USD
View
B+
Retailer 4
-
$3,594 USD
View
B+
Retailer 5
-
$3,595 USD
View
B+
Retailer 6
-
$3,669 USD
View
B+
Retailer 7
-
$3,669 USD
View
B+
Retailer 8
-
$3,688 USD
View
Final sale: no returns
B+
Retailer 9
-
$3,802 USD
View
Retailer 10
-
$3,996 USD
View
Price last confirmed 40 days ago
Retailer 11
-
$3,996 USD
View
Price last confirmed 61 days ago
Retailer 12
-
$3,996 USD
View
Price last confirmed 30 days ago
Retailer 13
-
$3,996 USD
View
Price last confirmed 39 days ago
Retailer 14
-
$3,996 USD
View
Price last confirmed 30 days ago
B+
Retailer 15
-
$4,000 USD
View
B+
Retailer 16
-
$4,010 USD
View
B+
Retailer 17
-
$4,142 USD
View
B+
Retailer 18
-
$4,492 USD
View
Retailer 19
-
$4,610 USD
View
Price last confirmed 39 days ago
Retailer 20
-
$4,610 USD
View
Price last confirmed 61 days ago
B
Retailer 21
-
$6,682 USD
View
Most Expensive
NZ Jewellers
8382035c-744b-4a8e-89e8-b45591e8a803 · Sep 28
$6,961 USD
View
Price last confirmed 40 days ago
21 more retailers have this diamond
Prices start from $3,020 USDSave up to $3,662 USD

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
$3,020 USD