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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 2546894345

Certificate GIA 2546894345

Diamond specifications and retailer prices

From $6,924 AUD
HK$38,000 HKD
As of November 1, 2026
Save $7,295 AUD (51%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $14,220 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 2546894345. Listed at 19 retailers as of October 28, 2026, with prices from $6,924 to $14,220, a $7,295 spread on the same certified stone. Queensmith lists it at $14,220. 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 2546894345
Dimensions7.50 × 5.92 × 4.04 mm
L/W Ratio1.27
Top View
7.50 mm5.92 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2546894345
Side View
Table 65.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.3%

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: $14,220 AUD|Low: $6,870 AUD|High: $14,337 AUD|Avg: $9,625 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 12$6,924 AUD
Retailer 2$7,396 AUD
Retailer 14$7,733 AUD
Retailer 6$8,161 AUD
Retailer 4$8,433 AUD
Retailer 7$8,549 AUD
Retailer 9$8,765 AUD
Retailer 13$9,138 AUD
Retailer 5$9,363 AUD
Retailer 3$9,540 AUD
Retailer 8$9,981 AUD
Retailer 11$11,227 AUD
Retailer 10$13,462 AUD
Queensmith$14,220 AUD

23 data points across 14 retailers

19 retailers$6,924 AUD to $14,220 AUD

A
Cheapest Retailer
-
$6,924 AUD
HK$38,000 HKD
A
Retailer 2
-
$7,396 AUD
₹494,779 INR
View
A
Retailer 3
-
$7,733 AUD
$5,432 USD
View
Retailer 4
-
$7,953 AUD
SGD 7,549 SGD
View
Price last confirmed 19 days ago
A
Retailer 5
-
$8,161 AUD
SGD 7,747 SGD
View
A
Retailer 6
-
$8,433 AUD
$5,924 USD
View
Final sale: no returns
B+
Retailer 7
-
$8,486 AUD
$5,961 USD
View
B+
Retailer 8
-
$8,492 AUD
$5,965 USD
View
A
Retailer 9
-
$8,549 AUD
£4,729 GBP
View
A
Retailer 10
-
$8,765 AUD
£4,848 GBP
View
Retailer 11
-
$9,068 AUD
View
Price last confirmed 23 days ago
B+
Retailer 12
-
$9,138 AUD
$6,419 USD
View
B+
Retailer 13
-
$9,363 AUD
$6,577 USD
View
B+
Retailer 14
-
$9,540 AUD
$6,701 USD
View
B+
Retailer 15
-
$9,548 AUD
View
B+
Retailer 16
-
$9,981 AUD
€6,677 EUR
View
B+
Retailer 17
-
$11,227 AUD
ZAR 127,404 ZAR
View
B
Retailer 18
-
$13,462 AUD
£7,446 GBP
View
Most Expensive
B
Queensmith
2546894345 · Oct 28
$14,220 AUD
£7,865 GBP
View
18 more retailers have this diamond
Prices start from $6,924 AUDSave up to $7,295 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
$6,924 AUD