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Cushion|Natural|GIA

1.50ct E SI1 Cushion Natural Diamond

ID • E/SI1 • GIA 2557438429

Certificate GIA 2557438429

Diamond specifications and retailer prices

From $6,772 CAD
HK$37,800 HKD
As of October 29, 2026
Save $7,306 CAD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $14,078 CAD 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 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 2557438429. Listed at 19 retailers as of October 28, 2026, with prices from $6,772 to $14,078, a $7,306 spread on the same certified stone. Queensmith lists it at $14,078. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557438429
Dimensions7.69 × 5.74 × 3.86 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
7.69 mm5.74 mm1.50 ctE / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557438429
Side View
Table 63.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 67.3%

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: Oct 29
Current: $14,078 CAD|Low: $6,772 CAD|High: $14,193 CAD|Avg: $9,489 CAD|+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
Retailer 15
Retailer 16
October 30, 2026
Retailer 3$6,772 CAD
Retailer 9$7,316 CAD
Retailer 10$7,612 CAD
Retailer 4$7,936 CAD
Retailer 7$8,043 CAD
Retailer 13$8,363 CAD
Retailer 16$8,403 CAD
Retailer 15$8,405 CAD
Retailer 2$8,733 CAD
Retailer 8$8,939 CAD
Retailer 5$8,957 CAD
Retailer 6$9,326 CAD
Retailer 12$9,931 CAD
Retailer 14$11,087 CAD
Retailer 11$13,486 CAD
Queensmith$14,078 CAD

28 data points across 16 retailers

19 retailers$6,772 CAD to $14,078 CAD

A
Cheapest Retailer
-
$6,772 CAD
HK$37,800 HKD
A
Retailer 2
-
$7,316 CAD
₹497,815 INR
View
A
Retailer 3
-
$7,612 CAD
$5,439 USD
View
Retailer 4
-
$7,838 CAD
SGD 7,568 SGD
View
Price last confirmed 16 days ago
A
Retailer 5
-
$7,936 CAD
$5,670 USD
View
A
Retailer 6
-
$8,043 CAD
SGD 7,766 SGD
View
A
Retailer 7
-
$8,363 CAD
$5,975 USD
View
A
Retailer 8
-
$8,363 CAD
$5,975 USD
View
A
Retailer 9
-
$8,403 CAD
$6,004 USD
View
Final sale: no returns
A
Retailer 10
-
$8,405 CAD
$6,005 USD
View
A
Retailer 11
-
$8,733 CAD
£4,913 GBP
View
B+
Retailer 12
-
$8,877 CAD
A$9,758 AUD
View
Retailer 13
-
$8,939 CAD
A$9,825 AUD
View
Price last confirmed 20 days ago
B+
Retailer 14
-
$8,957 CAD
$6,400 USD
View
B+
Retailer 15
-
$9,326 CAD
$6,663 USD
View
B+
Retailer 16
-
$9,931 CAD
€6,758 EUR
View
B+
Retailer 17
-
$11,087 CAD
ZAR 127,969 ZAR
View
B+
Retailer 18
-
$13,486 CAD
£7,587 GBP
View
Most Expensive
B
Queensmith
2557438429 · Oct 28
$14,078 CAD
£7,920 GBP
View
18 more retailers have this diamond
Prices start from $6,772 CADSave up to $7,306 CAD

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
$6,772 CAD