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Radiant|Natural|GIA

1.50ct D SI2 Radiant Natural Diamond

VG • D/SI2 • GIA 6551540443

Certificate GIA 6551540443

Diamond specifications and retailer prices

From $4,089 USD
As of November 6, 2026
Save $5,104 USD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $9,193 USD at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551540443. Listed at 16 retailers as of November 5, 2026, with prices from $4,089 to $9,193, a $5,104 spread on the same certified stone. NZ Jewellers lists it at $9,193. 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
D
Color
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551540443
Dimensions7.80 × 5.57 × 3.70 mm
L/W Ratio1.40
Girdle conditionPolished
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Needle, Indented Natural
Top View
7.80 mm5.57 mm1.50 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551540443
Side View
Table 69.0%CrownGirdle: ThickPavilionCulet: NoneDepth 66.5%

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: $9,193 USD|Low: $4,074 USD|High: $9,193 USD|Avg: $5,759 USD|+0.7%
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
November 7, 2026
Retailer 12$4,089 USD
Retailer 9$4,336 USD
Retailer 4$4,794 USD
Retailer 6$4,924 USD
Retailer 10$5,121 USD
Retailer 8$5,262 USD
Retailer 7$5,421 USD
Retailer 2$5,446 USD
Retailer 3$5,497 USD
Retailer 13$5,650 USD
Retailer 11$5,710 USD
Retailer 14$5,800 USD
Retailer 15$6,284 USD
Retailer 5$8,731 USD
NZ Jewellers$9,193 USD

22 data points across 15 retailers

16 retailers$4,089 USD to $9,193 USD

A
Cheapest Retailer
-
$4,089 USD
A
Retailer 2
-
$4,336 USD
View
Final sale: no returns
A
Retailer 3
-
$4,794 USD
View
A
Retailer 4
-
$4,924 USD
View
A
Retailer 5
-
$5,121 USD
View
A
Retailer 6
-
$5,262 USD
View
Retailer 7
-
$5,421 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
$5,446 USD
View
A
Retailer 9
-
$5,497 USD
View
A
Retailer 10
-
$5,650 USD
View
A
Retailer 11
-
$5,710 USD
View
A
Retailer 12
-
$5,800 USD
View
A
Retailer 13
-
$6,284 USD
View
Retailer 14
-
$6,430 USD
View
Price last confirmed 62 days ago
B+
Retailer 15
-
$8,731 USD
View
Most Expensive
B
NZ Jewellers
7b5098ec-7ca7-4c7e-a813-2c4bcf349377 · Nov 5
$9,193 USD
View
15 more retailers have this diamond
Prices start from $4,089 USDSave up to $5,104 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
$4,089 USD