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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5543750463

Certificate GIA 5543750463

Diamond specifications and retailer prices

From $6,833 AUD
HK$37,500 HKD
As of November 1, 2026
Save $7,287 AUD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $14,120 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 5543750463. Listed at 19 retailers as of October 28, 2026, with prices from $6,833 to $14,120, a $7,287 spread on the same certified stone. Queensmith lists it at $14,120. 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
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543750463
Dimensions7.38 × 5.80 × 3.97 mm
L/W Ratio1.27
Top View
7.38 mm5.80 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543750463
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.5%

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 1
Current: $14,120 AUD|Low: $6,779 AUD|High: $14,229 AUD|Avg: $9,458 AUD|+1.8%
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
November 2, 2026
Retailer 11$6,833 AUD
Retailer 7$7,302 AUD
Retailer 13$7,630 AUD
Retailer 5$8,050 AUD
Retailer 3$8,318 AUD
Retailer 8$8,432 AUD
Retailer 2$8,645 AUD
Retailer 6$8,971 AUD
Retailer 4$9,237 AUD
Retailer 14$9,416 AUD
Retailer 12$9,848 AUD
Retailer 10$11,073 AUD
Retailer 9$13,278 AUD
Queensmith$14,120 AUD

24 data points across 14 retailers

19 retailers$6,833 AUD to $14,120 AUD

A
Cheapest Retailer
-
$6,833 AUD
HK$37,500 HKD
A
Retailer 2
-
$7,302 AUD
₹488,481 INR
View
A
Retailer 3
-
$7,630 AUD
$5,360 USD
View
Retailer 4
-
$7,844 AUD
SGD 7,446 SGD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$8,050 AUD
SGD 7,641 SGD
View
A
Retailer 6
-
$8,318 AUD
$5,843 USD
View
Final sale: no returns
A
Retailer 7
-
$8,369 AUD
$5,879 USD
View
A
Retailer 8
-
$8,371 AUD
$5,880 USD
View
A
Retailer 9
-
$8,432 AUD
£4,664 GBP
View
A
Retailer 10
-
$8,645 AUD
£4,782 GBP
View
Retailer 11
-
$8,971 AUD
View
Price last confirmed 22 days ago
Retailer 12
-
$9,075 AUD
$6,375 USD
View
Price last confirmed 17 days ago
B+
Retailer 13
-
$9,237 AUD
$6,488 USD
View
B+
Retailer 14
-
$9,261 AUD
View
B+
Retailer 15
-
$9,416 AUD
$6,614 USD
View
B+
Retailer 16
-
$9,848 AUD
€6,588 EUR
View
B+
Retailer 17
-
$11,073 AUD
ZAR 125,655 ZAR
View
B+
Retailer 18
-
$13,278 AUD
£7,344 GBP
View
Most Expensive
B
Queensmith
5543750463 · Oct 28
$14,120 AUD
£7,810 GBP
View
18 more retailers have this diamond
Prices start from $6,833 AUDSave up to $7,287 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
$6,833 AUD