Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6541781711

Certificate GIA 6541781711

Diamond specifications and retailer prices

From $3,328 USD
HK$26,000 HKD
As of November 1, 2026
Save $3,611 USD (52%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,207 USD at Wholesale Diamonds Direct · As of October 23, 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 I 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 6541781711. Listed at 22 retailers as of November 1, 2026, with a 109% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.7°
OriginNatural
Grading LabGIA
CertificateGIA 6541781711
Dimensions7.14 × 6.19 × 4.29 mm
L/W Ratio1.15
Top View
7.14 mm6.19 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541781711
Side View
Table 66.0%CrownGirdle: STK-THKPavilion 37.7°Culet: NoneDepth 69.3%

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: Nov 1
Current: $4,020 USD|Low: $3,328 USD|High: $7,487 USD|Avg: $4,514 USD|+6.0%
Retailer 1
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
Retailer 18
Wholesale Diamonds Direct
November 1, 2026
Retailer 12$3,328 USD
Retailer 9$3,590 USD
Retailer 17$3,823 USD
Retailer 11$3,855 USD
Retailer 7$3,878 USD
Retailer 8$3,885 USD
Retailer 1$4,020 USD
Retailer 2$4,021 USD
Retailer 14$4,134 USD
Retailer 10$4,210 USD
Retailer 16$4,275 USD
Retailer 5$4,331 USD
Retailer 13$4,394 USD
Retailer 18$4,457 USD
Retailer 6$4,507 USD
Retailer 4$5,111 USD
Retailer 3$5,552 USD
Retailer 15$6,939 USD
Wholesale Diamonds Direct$7,207 USD

19 data points across 19 retailers

22 retailers$3,328 USD to $6,939 USD

A
Cheapest Retailer
-
$3,328 USD
HK$26,000 HKD
Retailer 2
-
$3,590 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
$3,823 USD
€3,641 EUR
View
A
Retailer 4
-
$3,855 USD
View
A
Retailer 5
-
$3,878 USD
View
A
Retailer 6
-
$3,885 USD
View
A
Retailer 7
-
$4,020 USD
View
A
Retailer 8
-
$4,021 USD
View
Final sale: no returns
A
Retailer 9
-
$4,117 USD
A$6,333 AUD
View
A
Retailer 10
-
$4,134 USD
£3,255 GBP
View
A
Retailer 11
-
$4,210 USD
View
A
Retailer 12
-
$4,275 USD
View
A
Retailer 13
-
$4,331 USD
View
B+
Retailer 14
-
$4,394 USD
View
A
Retailer 15
-
$4,457 USD
£3,509 GBP
View
B+
Retailer 16
-
$4,507 USD
View
Retailer 17
-
$4,716 USD
A$7,255 AUD
View
Price last confirmed 23 days ago
B+
Retailer 18
-
$4,796 USD
A$7,378 AUD
View
B+
Retailer 19
-
$5,111 USD
€4,868 EUR
View
B+
Retailer 20
-
$5,552 USD
ZAR 89,688 ZAR
View
B
Retailer 21
-
$6,939 USD
£5,464 GBP
View
Most Expensive
Wholesale Diamonds Direct
425984398 · Oct 23
$7,207 USD
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from $3,328 USDSave up to $3,611 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
$3,328 USD