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Cushion|Natural|GIA

1.50ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6541643501

Certificate GIA 6541643501

Diamond specifications and retailer prices

From $6,598 CAD
HK$36,900 HKD
As of October 31, 2026
Save $7,151 CAD (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,749 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541643501. Listed at 21 retailers as of October 28, 2026, with prices from $6,598 to $13,749, a $7,151 spread on the same certified stone. Queensmith lists it at $13,749. 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
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6541643501
Dimensions7.86 × 5.86 × 3.95 mm
L/W Ratio1.34
Top View
7.86 mm5.86 mm1.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541643501
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: 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 31
Current: $13,749 CAD|Low: $6,544 CAD|High: $13,802 CAD|Avg: $8,947 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
Retailer 17
October 31, 2026
Retailer 10$6,598 CAD
Retailer 2$7,014 CAD
Retailer 17$7,328 CAD
Retailer 9$7,527 CAD
Retailer 6$8,039 CAD
Retailer 4$8,061 CAD
Retailer 13$8,232 CAD
Retailer 3$8,312 CAD
Retailer 12$8,356 CAD
Retailer 16$8,710 CAD
Retailer 8$8,926 CAD
Retailer 5$8,930 CAD
Retailer 7$9,106 CAD
Retailer 11$9,519 CAD
Retailer 15$10,607 CAD
Retailer 14$12,901 CAD
Queensmith$13,749 CAD

22 data points across 17 retailers

21 retailers$6,598 CAD to $13,749 CAD

A
Cheapest Retailer
-
$6,598 CAD
HK$36,900 HKD
A
Retailer 2
-
$7,014 CAD
₹478,234 INR
View
B+
Retailer 3
-
$7,328 CAD
$5,246 USD
View
B+
Retailer 4
-
$7,527 CAD
SGD 7,282 SGD
View
B+
Retailer 5
-
$7,630 CAD
$5,462 USD
View
B+
Retailer 6
-
$8,039 CAD
$5,755 USD
View
Final sale: no returns
B+
Retailer 7
-
$8,061 CAD
SGD 7,798 SGD
View
B+
Retailer 8
-
$8,232 CAD
£4,640 GBP
View
B
Retailer 9
-
$8,312 CAD
$5,950 USD
View
B+
Retailer 10
-
$8,356 CAD
£4,710 GBP
View
B+
Retailer 11
-
$8,381 CAD
$6,000 USD
View
B
Retailer 12
-
$8,710 CAD
$6,235 USD
View
Retailer 13
-
$8,912 CAD
A$9,815 AUD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
$8,926 CAD
$6,390 USD
View
B+
Retailer 15
-
$8,930 CAD
$6,393 USD
View
B+
Retailer 16
-
$9,106 CAD
$6,519 USD
View
B
Retailer 17
-
$9,396 CAD
A$10,348 AUD
View
B+
Retailer 18
-
$9,519 CAD
€6,490 EUR
View
B
Retailer 19
-
$10,607 CAD
ZAR 122,665 ZAR
View
B
Retailer 20
-
$12,901 CAD
£7,272 GBP
View
Most Expensive
B
Queensmith
6541643501 · Oct 28
$13,749 CAD
£7,750 GBP
View
20 more retailers have this diamond
Prices start from $6,598 CADSave up to $7,151 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
$6,598 CAD