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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6542936162

Certificate GIA 6542936162

Diamond specifications and retailer prices

From $8,783 AUD
HK$48,200 HKD
As of November 1, 2026
Save $7,444 AUD (46%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $16,227 AUD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion 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 6542936162. Listed at 18 retailers as of October 28, 2026, with prices from $8,783 to $16,227, a $7,444 spread on the same certified stone. Queensmith lists it at $16,227. 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542936162
Dimensions8.16 × 5.83 × 3.82 mm
L/W Ratio1.40
Top View
8.16 mm5.83 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542936162
Side View
Table 67.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.6%

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 1
Current: $16,227 AUD|Low: $8,710 AUD|High: $16,326 AUD|Avg: $11,453 AUD|+0.7%
Queensmith
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 2, 2026
Retailer 15$8,783 AUD
Retailer 12$9,316 AUD
Retailer 4$9,512 AUD
Retailer 7$9,997 AUD
Retailer 6$10,024 AUD
Retailer 5$10,508 AUD
Retailer 8$10,535 AUD
Retailer 16$10,535 AUD
Retailer 10$10,627 AUD
Retailer 11$10,861 AUD
Retailer 3$11,094 AUD
Retailer 9$11,757 AUD
Retailer 2$12,577 AUD
Retailer 14$14,221 AUD
Retailer 13$16,133 AUD
Queensmith$16,227 AUD

28 data points across 16 retailers

18 retailers$8,783 AUD to $16,227 AUD

A
Cheapest Retailer
-
$8,783 AUD
HK$48,200 HKD
A
Retailer 2
-
$9,316 AUD
₹623,231 INR
View
B+
Retailer 3
-
$9,512 AUD
$6,682 USD
View
B+
Retailer 4
-
$9,997 AUD
$7,022 USD
View
Retailer 5
-
$10,024 AUD
SGD 9,515 SGD
View
Price last confirmed 22 days ago
B+
Retailer 6
-
$10,508 AUD
SGD 9,975 SGD
View
B+
Retailer 7
-
$10,535 AUD
$7,400 USD
View
B+
Retailer 8
-
$10,535 AUD
$7,400 USD
View
B+
Retailer 9
-
$10,627 AUD
$7,465 USD
View
Final sale: no returns
B+
Retailer 10
-
$10,829 AUD
$7,607 USD
View
B+
Retailer 11
-
$10,861 AUD
£6,008 GBP
View
Retailer 12
-
$11,094 AUD
View
Price last confirmed 11 days ago
B+
Retailer 13
-
$11,757 AUD
$8,259 USD
View
B+
Retailer 14
-
$12,231 AUD
View
B+
Retailer 15
-
$12,577 AUD
€8,414 EUR
View
B
Retailer 16
-
$14,221 AUD
ZAR 161,378 ZAR
View
B
Retailer 17
-
$16,133 AUD
£8,923 GBP
View
Most Expensive
B
Queensmith
6542936162 · Oct 28
$16,227 AUD
£8,975 GBP
View
17 more retailers have this diamond
Prices start from $8,783 AUDSave up to $7,444 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 Cushion
$8,783 AUD