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Cushion|Natural|GIA

1.50ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 2556001331

Certificate GIA 2556001331

Diamond specifications and retailer prices

From $7,616 AUD
HK$41,800 HKD
As of October 30, 2026
Save $7,378 AUD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $14,994 AUD at Wholesale Diamonds Direct · As of October 27, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556001331. Listed at 19 retailers as of October 27, 2026, with prices from $7,616 to $14,994, a $7,378 spread on the same certified stone. Wholesale Diamonds Direct lists it at $14,994. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.13°
Pavilion angle57.03°
OriginNatural
Grading LabGIA
CertificateGIA 2556001331
Dimensions7.59 × 5.98 × 4.15 mm
L/W Ratio1.27
Top View
7.59 mm5.98 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556001331
Side View
Table 66.0%Crown 42.13°Girdle: STK-VTKPavilion 57.03°Culet: NoneDepth 69.5%

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: Oct 30
Current: $7,832 AUD|Low: $7,480 AUD|High: $14,994 AUD|Avg: $10,351 AUD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Wholesale Diamonds Direct
October 30, 2026
Retailer 1$7,832 AUD
Retailer 10$8,810 AUD
Retailer 7$9,080 AUD
Retailer 3$9,093 AUD
Retailer 11$9,093 AUD
Retailer 4$9,446 AUD
Retailer 2$9,660 AUD
Retailer 9$10,284 AUD
Retailer 5$10,747 AUD
Retailer 6$11,995 AUD
Retailer 8$14,532 AUD
Wholesale Diamonds Direct$14,994 AUD

39 data points across 12 retailers

19 retailers$7,616 AUD to $14,994 AUD

A
Cheapest Retailer
-
$7,616 AUD
HK$41,800 HKD
A
Retailer 2
-
$7,832 AUD
₹524,029 INR
View
A
Retailer 3
-
$8,411 AUD
$5,909 USD
View
A
Retailer 4
-
$8,592 AUD
$6,036 USD
View
Retailer 5
-
$8,760 AUD
SGD 8,317 SGD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$8,810 AUD
SGD 8,364 SGD
View
Retailer 7
-
$9,078 AUD
$6,378 USD
View
Price last confirmed 10 days ago
A
Retailer 8
-
$9,080 AUD
$6,379 USD
View
B+
Retailer 9
-
$9,093 AUD
$6,388 USD
View
Final sale: no returns
Retailer 10
-
$9,093 AUD
$6,388 USD
View
Price last confirmed 14 days ago
B+
Retailer 11
-
$9,124 AUD
$6,410 USD
View
B+
Retailer 12
-
$9,446 AUD
£5,226 GBP
View
Retailer 13
-
$9,660 AUD
View
Price last confirmed 26 days ago
B+
Retailer 14
-
$10,078 AUD
$7,080 USD
View
B+
Retailer 15
-
$10,284 AUD
$7,225 USD
View
B+
Retailer 16
-
$10,747 AUD
€7,191 EUR
View
B+
Retailer 17
-
$11,995 AUD
ZAR 136,136 ZAR
View
B
Retailer 18
-
$14,532 AUD
£8,039 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
594101091 · Oct 27
$14,994 AUD
$10,534 USD
View
18 more retailers have this diamond
Prices start from $7,616 AUDSave up to $7,378 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
$7,616 AUD