Cushion|Natural|GIA

1.50ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6541643501

Certificate GIA 6541643501

Diamond specifications and retailer prices

From $4,723 USD
HK$36,900 HKD
As of November 1, 2026
Save $5,119 USD (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $9,843 USD 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 $4,723 to $9,843, a $5,119 spread on the same certified stone. Queensmith lists it at $9,843. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $9,843 USD|Low: $4,685 USD|High: $9,881 USD|Avg: $6,477 USD|+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
November 1, 2026
Retailer 11$4,723 USD
Retailer 2$5,020 USD
Retailer 14$5,246 USD
Retailer 6$5,755 USD
Retailer 4$5,771 USD
Retailer 7$5,876 USD
Retailer 3$5,950 USD
Retailer 9$5,982 USD
Retailer 13$6,235 USD
Retailer 5$6,393 USD
Retailer 12$6,815 USD
Retailer 10$7,661 USD
Retailer 8$9,186 USD
Queensmith$9,843 USD

23 data points across 14 retailers

21 retailers$4,723 USD to $9,843 USD

A
Cheapest Retailer
-
$4,723 USD
HK$36,900 HKD
A
Retailer 2
-
$5,020 USD
₹478,131 INR
View
B+
Retailer 3
-
$5,246 USD
View
B+
Retailer 4
-
$5,389 USD
SGD 7,282 SGD
View
B+
Retailer 5
-
$5,462 USD
View
B+
Retailer 6
-
$5,755 USD
View
Final sale: no returns
B+
Retailer 7
-
$5,771 USD
SGD 7,798 SGD
View
B+
Retailer 8
-
$5,876 USD
£4,626 GBP
View
B
Retailer 9
-
$5,950 USD
View
B+
Retailer 10
-
$5,982 USD
£4,710 GBP
View
B+
Retailer 11
-
$6,000 USD
View
B
Retailer 12
-
$6,235 USD
View
Retailer 13
-
$6,380 USD
A$9,815 AUD
View
Price last confirmed 29 days ago
B+
Retailer 14
-
$6,390 USD
View
B+
Retailer 15
-
$6,393 USD
View
B+
Retailer 16
-
$6,519 USD
View
B
Retailer 17
-
$6,726 USD
A$10,348 AUD
View
B+
Retailer 18
-
$6,815 USD
€6,490 EUR
View
B
Retailer 19
-
$7,661 USD
ZAR 123,766 ZAR
View
B
Retailer 20
-
$9,186 USD
£7,233 GBP
View
Most Expensive
B
Queensmith
6541643501 · Oct 28
$9,843 USD
£7,750 GBP
View
20 more retailers have this diamond
Prices start from $4,723 USDSave up to $5,119 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
$4,723 USD