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Round|Natural|GIA

1.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1236706610

Certificate GIA 1236706610

Diamond specifications and retailer prices

From $9,417 AUD
As of November 6, 2026
Save $9,075 AUD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $21,660 AUD at NZ Jewellers · As of October 23, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1236706610. Listed at 19 retailers as of November 4, 2026, with a 96% 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1236706610
Dimensions7.28 × 7.22 × 4.52 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.28 mm7.22 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236706610
Side View
Table 59.0%Crown 36°Girdle: Slightly ThickPavilion 41°Culet: NoneDepth 62.6%

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: $12,357 AUD|Low: $9,417 AUD|High: $18,835 AUD|Avg: $13,034 AUD|-4.4%
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
Retailer 17
November 6, 2026
Retailer 11$9,417 AUD
Retailer 4$10,178 AUD
Retailer 2$10,334 AUD
Retailer 14$11,139 AUD
Retailer 7$11,529 AUD
Retailer 5$11,657 AUD
Retailer 13$12,131 AUD
Retailer 12$12,194 AUD
Retailer 9$12,199 AUD
Retailer 8$12,281 AUD
Retailer 1$12,357 AUD
Retailer 17$13,079 AUD
Retailer 6$13,284 AUD
Retailer 10$13,622 AUD
Retailer 16$13,815 AUD
Retailer 15$15,545 AUD
Retailer 3$18,492 AUD

22 data points across 17 retailers

19 retailers$9,417 AUD to $18,492 AUD

A
Cheapest Retailer
-
$9,417 AUD
A
Retailer 2
-
$10,178 AUD
View
A
Retailer 3
-
$10,334 AUD
View
Retailer 4
-
$10,599 AUD
View
Price last confirmed 25 days ago
A
Retailer 5
-
$11,139 AUD
View
A
Retailer 6
-
$11,529 AUD
View
A
Retailer 7
-
$11,657 AUD
View
B+
Retailer 8
-
$12,131 AUD
View
B+
Retailer 9
-
$12,194 AUD
View
Retailer 10
-
$12,199 AUD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
$12,281 AUD
View
Final sale: no returns
B+
Retailer 12
-
$12,357 AUD
View
B+
Retailer 13
-
$13,079 AUD
View
Retailer 14
-
$13,284 AUD
View
Price last confirmed 3 days ago
B+
Retailer 15
-
$13,622 AUD
View
B+
Retailer 16
-
$13,815 AUD
View
B+
Retailer 17
-
$15,545 AUD
View
B
Retailer 18
-
$18,492 AUD
View
Most Expensive
NZ Jewellers
59cabcad-5a56-4d51-8662-0e41e98f1b52 · Oct 23
$21,660 AUD
$15,163 USD
View
Price last confirmed 13 days ago
18 more retailers have this diamond
Prices start from $9,417 AUDSave up to $9,075 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.

A
1.50ct Round
$9,417 AUD