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Radiant|Natural|GIA

1.50ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 7546274592

Certificate GIA 7546274592

Diamond specifications and retailer prices

From $11,689 NZD
As of November 2, 2026
Save $6,718 NZD (36%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $21,387 NZD at NZ Jewellers · As of September 21, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7546274592. Listed at 6 retailers as of November 2, 2026, with a 57% 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle51.58°
Pavilion angle36.22°
OriginNatural
Grading LabGIA
CertificateGIA 7546274592
Dimensions7.42 × 5.72 × 3.95 mm
L/W Ratio1.30
Girdle conditionVery Thick
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.42 mm5.72 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7546274592
Side View
Table 70.0%Crown 51.58°GirdlePavilion 36.22°CuletDepth 69.1%

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 2
Current: $12,501 NZD|Low: $11,090 NZD|High: $19,064 NZD|Avg: $13,483 NZD|+5.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 7, 2026
Retailer 5$11,090 NZD
Retailer 2$11,689 NZD
Retailer 4$12,378 NZD
Retailer 1$12,501 NZD
Retailer 7$12,966 NZD
Retailer 6$13,610 NZD
Retailer 8$14,215 NZD
Retailer 3$18,407 NZD

35 data points across 8 retailers

6 retailers$11,689 NZD to $18,407 NZD

A
Cheapest Retailer
-
$11,689 NZD
Retailer 2
-
$12,378 NZD
View
Price last confirmed 16 days ago
B+
Retailer 3
-
$12,501 NZD
View
Retailer 4
-
$12,788 NZD
View
Price last confirmed 46 days ago
B+
Retailer 5
-
$18,407 NZD
View
Most Expensive
NZ Jewellers
a80dbe02-06ee-4ed2-be3f-c6634cda6f54 · Sep 21
$21,387 NZD
$11,856 USD
View
Price last confirmed 46 days ago
5 more retailers have this diamond
Prices start from $11,689 NZDSave up to $6,718 NZD

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
$11,689 NZD