Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 6542936162

Certificate GIA 6542936162

Diamond specifications and retailer prices

From $6,170 USD
HK$48,200 HKD
As of October 31, 2026
Save $5,229 USD (46%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,398 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 D 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 6542936162. Listed at 18 retailers as of October 28, 2026, with prices from $6,170 to $11,398, a $5,229 spread on the same certified stone. Queensmith lists it at $11,398. 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542936162
Dimensions8.16 × 5.83 × 3.82 mm
L/W Ratio1.40
Top View
8.16 mm5.83 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542936162
Side View
Table 67.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 65.6%

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: $11,398 USD|Low: $6,118 USD|High: $11,711 USD|Avg: $8,094 USD|+0.7%
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 31, 2026
Retailer 10$6,170 USD
Retailer 9$6,545 USD
Retailer 16$6,682 USD
Retailer 7$7,022 USD
Retailer 6$7,041 USD
Retailer 3$7,382 USD
Retailer 8$7,400 USD
Retailer 12$7,400 USD
Retailer 5$7,505 USD
Retailer 13$7,671 USD
Retailer 15$7,793 USD
Retailer 4$8,303 USD
Retailer 11$8,885 USD
Retailer 2$9,989 USD
Retailer 14$11,393 USD
Queensmith$11,398 USD

27 data points across 16 retailers

18 retailers$6,170 USD to $11,398 USD

A
Cheapest Retailer
-
$6,170 USD
HK$48,200 HKD
A
Retailer 2
-
$6,545 USD
₹623,366 INR
View
B+
Retailer 3
-
$6,682 USD
View
B+
Retailer 4
-
$7,022 USD
View
Retailer 5
-
$7,041 USD
SGD 9,515 SGD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$7,382 USD
SGD 9,975 SGD
View
B+
Retailer 7
-
$7,400 USD
View
B+
Retailer 8
-
$7,400 USD
View
B+
Retailer 9
-
$7,505 USD
View
Final sale: no returns
B+
Retailer 10
-
$7,607 USD
View
B+
Retailer 11
-
$7,671 USD
£6,040 GBP
View
Retailer 12
-
$7,793 USD
A$11,989 AUD
View
Price last confirmed 10 days ago
B+
Retailer 13
-
$8,303 USD
View
B+
Retailer 14
-
$8,592 USD
A$13,218 AUD
View
B+
Retailer 15
-
$8,885 USD
€8,462 EUR
View
B
Retailer 16
-
$9,989 USD
ZAR 161,378 ZAR
View
B
Retailer 17
-
$11,393 USD
£8,971 GBP
View
Most Expensive
B
Queensmith
6542936162 · Oct 28
$11,398 USD
£8,975 GBP
View
17 more retailers have this diamond
Prices start from $6,170 USDSave up to $5,229 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
$6,170 USD