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Cushion|Natural|GIA

1.50ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 6541578989

Certificate GIA 6541578989

Diamond specifications and retailer prices

From $5,739 AUD
HK$31,500 HKD
As of October 29, 2026
Save $6,488 AUD (53%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $12,227 AUD at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6541578989. Listed at 21 retailers as of October 23, 2026, with prices from $5,739 to $12,227, a $6,488 spread on the same certified stone. Wholesale Diamonds Direct lists it at $12,227. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle36.9°
OriginNatural
Grading LabGIA
CertificateGIA 6541578989
Dimensions7.14 × 6.20 × 4.21 mm
L/W Ratio1.15
Top View
7.14 mm6.20 mm1.50 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6541578989
Side View
Table 65.0%CrownGirdle: THK-VTKPavilion 36.9°Culet: NDepth 67.9%

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: Oct 29
Current: $7,374 AUD|Low: $5,739 AUD|High: $12,762 AUD|Avg: $7,643 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
Retailer 17
Retailer 18
Wholesale Diamonds Direct
October 29, 2026
Retailer 3$5,739 AUD
Retailer 15$5,817 AUD
Retailer 4$6,197 AUD
Retailer 18$6,210 AUD
Retailer 11$6,334 AUD
Retailer 5$6,513 AUD
Retailer 2$6,555 AUD
Retailer 12$6,684 AUD
Retailer 7$6,892 AUD
Retailer 6$6,918 AUD
Retailer 17$6,949 AUD
Retailer 13$7,106 AUD
Retailer 1$7,374 AUD
Retailer 10$7,846 AUD
Retailer 9$8,233 AUD
Retailer 14$8,374 AUD
Retailer 16$8,944 AUD
Retailer 8$11,866 AUD
Wholesale Diamonds Direct$12,227 AUD

22 data points across 19 retailers

21 retailers$5,739 AUD to $12,227 AUD

A
Cheapest Retailer
-
$5,739 AUD
HK$31,500 HKD
A
Retailer 2
-
$5,817 AUD
$4,087 USD
View
A
Retailer 3
-
$6,197 AUD
$4,354 USD
View
Final sale: no returns
A
Retailer 4
-
$6,210 AUD
$4,363 USD
View
A
Retailer 5
-
$6,334 AUD
$4,450 USD
View
A
Retailer 6
-
$6,513 AUD
$4,576 USD
View
A
Retailer 7
-
$6,555 AUD
$4,605 USD
View
A
Retailer 8
-
$6,684 AUD
€4,472 EUR
View
A
Retailer 9
-
$6,892 AUD
$4,842 USD
View
A
Retailer 10
-
$6,918 AUD
$4,860 USD
View
A
Retailer 11
-
$6,949 AUD
$4,882 USD
View
Retailer 12
-
$7,106 AUD
$4,992 USD
View
A
Retailer 13
-
$7,106 AUD
$4,992 USD
View
Price last confirmed 8 days ago
A
Retailer 14
-
$7,374 AUD
£4,079 GBP
View
A
Retailer 15
-
$7,846 AUD
View
Price last confirmed 20 days ago
B+
Retailer 16
-
$8,057 AUD
View
A
Retailer 17
-
$8,233 AUD
SGD 7,816 SGD
View
A
Retailer 18
-
$8,374 AUD
€5,603 EUR
View
B+
Retailer 19
-
$8,944 AUD
ZAR 101,506 ZAR
View
Price last confirmed 7 days ago
B+
Retailer 20
-
$11,866 AUD
£6,564 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
425790474 · Oct 23
$12,227 AUD
$8,590 USD
View
20 more retailers have this diamond
Prices start from $5,739 AUDSave up to $6,488 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
$5,739 AUD