Cushion|Natural|GIA

1.50ct E SI1 Cushion Natural Diamond

EX • E/SI1 • GIA 2556001331

Certificate GIA 2556001331

Diamond specifications and retailer prices

From $5,350 USD
HK$41,800 HKD
As of October 29, 2026
Save $5,183 USD (49%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $10,534 USD 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 $5,350 to $10,534, a $5,183 spread on the same certified stone. Wholesale Diamonds Direct lists it at $10,534. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $6,616 USD|Low: $5,255 USD|High: $10,534 USD|Avg: $7,324 USD|+1.2%
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 29, 2026
Retailer 4$5,506 USD
Retailer 10$6,189 USD
Retailer 7$6,379 USD
Retailer 3$6,388 USD
Retailer 11$6,388 USD
Retailer 1$6,616 USD
Retailer 2$6,787 USD
Retailer 9$7,225 USD
Retailer 5$7,551 USD
Retailer 6$8,427 USD
Retailer 8$10,210 USD
Wholesale Diamonds Direct$10,534 USD

39 data points across 12 retailers

19 retailers$5,350 USD to $10,534 USD

A
Cheapest Retailer
-
$5,350 USD
HK$41,800 HKD
A
Retailer 2
-
$5,506 USD
₹524,427 INR
View
A
Retailer 3
-
$5,909 USD
View
A
Retailer 4
-
$6,036 USD
View
B+
Retailer 5
-
$6,155 USD
SGD 8,317 SGD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$6,189 USD
SGD 8,364 SGD
View
B+
Retailer 7
-
$6,378 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
$6,379 USD
View
B+
Retailer 9
-
$6,388 USD
View
Final sale: no returns
B+
Retailer 10
-
$6,388 USD
View
Price last confirmed 13 days ago
B+
Retailer 11
-
$6,410 USD
View
B+
Retailer 12
-
$6,616 USD
£5,210 GBP
View
B+
Retailer 13
-
$6,787 USD
A$10,441 AUD
View
Price last confirmed 25 days ago
B+
Retailer 14
-
$7,080 USD
View
B+
Retailer 15
-
$7,225 USD
View
B+
Retailer 16
-
$7,551 USD
€7,191 EUR
View
B+
Retailer 17
-
$8,427 USD
ZAR 136,136 ZAR
View
B
Retailer 18
-
$10,210 USD
£8,039 GBP
View
Most Expensive
B
Wholesale Diamonds Direct
594101091 · Oct 27
$10,534 USD
View
18 more retailers have this diamond
Prices start from $5,350 USDSave up to $5,183 USD

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
$5,350 USD