Radiant|Natural|GIA

1.50ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 6552667733

Certificate GIA 6552667733

Diamond specifications and retailer prices

From $4,833 USD
As of November 7, 2026
Save $4,249 USD (47%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,082 USD at NZ Jewellers · As of November 3, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6552667733. Listed at 10 retailers as of November 3, 2026, with prices from $4,833 to $9,082, a $4,249 spread on the same certified stone. NZ Jewellers lists it at $9,082. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle54.8°
Pavilion angle36.44°
OriginNatural
Grading LabGIA
CertificateGIA 6552667733
Dimensions7.40 × 5.66 × 3.95 mm
L/W Ratio1.31
Girdle conditionVery Thick
Key to symbols
Crystal, Needle, Natural
Top View
7.40 mm5.66 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552667733
Side View
Table 73.0%Crown 54.8°GirdlePavilion 36.44°Culet: NoneDepth 69.8%

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 7
Current: $9,082 USD|Low: $4,833 USD|High: $9,306 USD|Avg: $6,141 USD|-2.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 7, 2026
Retailer 3$4,833 USD
Retailer 9$4,875 USD
Retailer 6$5,116 USD
Retailer 5$5,245 USD
Retailer 4$5,250 USD
Retailer 2$5,365 USD
Retailer 8$5,430 USD
Retailer 10$5,474 USD
Retailer 7$8,648 USD
NZ Jewellers$9,082 USD

43 data points across 10 retailers

10 retailers$4,833 USD to $9,082 USD

A
Cheapest Retailer
-
$4,833 USD
A
Retailer 2
-
$4,875 USD
View
A
Retailer 3
-
$5,116 USD
View
A
Retailer 4
-
$5,245 USD
View
A
Retailer 5
-
$5,250 USD
View
A
Retailer 6
-
$5,365 USD
View
B+
Retailer 7
-
$5,430 USD
View
Retailer 8
-
$5,474 USD
View
Price last confirmed 29 days ago
B
Retailer 9
-
$8,648 USD
View
Most Expensive
B
NZ Jewellers
a58e4b94-a83f-44b1-b18e-47b3b3ff79dd · Nov 3
$9,082 USD
View
9 more retailers have this diamond
Prices start from $4,833 USDSave up to $4,249 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 Radiant
$4,833 USD