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Radiant|Natural|GIA

1.50ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2536435116

Certificate GIA 2536435116

Diamond specifications and retailer prices

From $13,004 AUD
As of November 4, 2026
Save $8,159 AUD (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $21,163 AUD 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2536435116. Listed at 12 retailers as of November 4, 2026, with prices from $13,004 to $21,163, a $8,159 spread on the same certified stone. NZ Jewellers lists it at $21,163. 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
OriginNatural
Grading LabGIA
CertificateGIA 2536435116
Dimensions7.50 × 5.76 × 4.01 mm
L/W Ratio1.30
Top View
7.50 mm5.76 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2536435116
Side View
Table 68.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 69.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $15,908 AUD|Low: $9,873 AUD|High: $20,069 AUD|Avg: $14,676 AUD|+2.9%
Retailer 1
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
November 6, 2026
Retailer 5$9,873 AUD
Retailer 8$10,424 AUD
Retailer 6$12,585 AUD
Retailer 3$13,004 AUD
Retailer 2$13,535 AUD
Retailer 15$13,877 AUD
Retailer 11$13,947 AUD
Retailer 12$14,016 AUD
Retailer 16$14,016 AUD
Retailer 13$15,417 AUD
Retailer 1$15,908 AUD
Retailer 4$16,071 AUD
Retailer 7$16,948 AUD
Retailer 14$17,520 AUD
Retailer 9$18,524 AUD
Retailer 10$19,777 AUD

31 data points across 16 retailers

12 retailers$13,004 AUD to $21,163 AUD

B+
Cheapest Retailer
-
$13,004 AUD
B+
Retailer 2
-
$13,535 AUD
View
B+
Retailer 3
-
$13,877 AUD
View
Retailer 4
-
$13,947 AUD
View
Price last confirmed 15 days ago
B
Retailer 5
-
$14,016 AUD
View
Final sale: no returns
B+
Retailer 6
-
$15,184 AUD
View
B+
Retailer 7
-
$15,417 AUD
View
B+
Retailer 8
-
$15,908 AUD
View
B
Retailer 9
-
$17,520 AUD
View
B
Retailer 10
-
$18,524 AUD
View
B
Retailer 11
-
$19,777 AUD
View
Most Expensive
B
NZ Jewellers
0f46ccc3-79b0-4e9c-b84a-b0ae089210fa · Nov 5
$21,163 AUD
$14,541 USD
View
11 more retailers have this diamond
Prices start from $13,004 AUDSave up to $8,159 AUD

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.

B+
1.50ct Radiant
$13,004 AUD