Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

GD • I/SI1 • GIA 2546669243

Certificate GIA 2546669243

Diamond specifications and retailer prices

From £2,579 GBP
HK$27,000 HKD
As of November 2, 2026
Save £2,714 GBP (51%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £5,482 GBP 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2546669243. Listed at 22 retailers as of November 1, 2026, with a 105% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle38.3°
OriginNatural
Grading LabGIA
CertificateGIA 2546669243
Dimensions7.13 × 6.18 × 4.31 mm
L/W Ratio1.15
Top View
7.13 mm6.18 mm1.50 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2546669243
Side View
Table 65.0%CrownGirdle: STK-THKPavilion 38.3°Culet: NDepth 69.7%

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 2
Current: £2,579 GBP|Low: £2,541 GBP|High: £5,704 GBP|Avg: £3,450 GBP|-3.6%
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 2, 2026
Retailer 1£2,579 GBP
Retailer 2£2,615 GBP
Retailer 16£2,719 GBP
Retailer 14£2,818 GBP
Retailer 4£2,908 GBP
Retailer 9£2,951 GBP
Retailer 8£2,952 GBP
Retailer 10£2,967 GBP
Retailer 18£3,034 GBP
Retailer 13£3,101 GBP
Retailer 17£3,105 GBP
Retailer 11£3,198 GBP
Retailer 6£3,301 GBP
Retailer 7£3,430 GBP
Retailer 15£3,449 GBP
Retailer 12£3,814 GBP
Retailer 5£4,232 GBP
Retailer 3£5,294 GBP
Wholesale Diamonds Direct£5,482 GBP

20 data points across 19 retailers

22 retailers£2,579 GBP to £5,294 GBP

A
Cheapest Retailer
-
£2,579 GBP
HK$27,000 HKD
A
Retailer 2
-
£2,615 GBP
$3,504 USD
View
A
Retailer 3
-
£2,719 GBP
$3,643 USD
View
B+
Retailer 4
-
£2,818 GBP
$3,776 USD
View
Final sale: no returns
B+
Retailer 5
-
£2,908 GBP
€3,711 EUR
View
B+
Retailer 6
-
£2,951 GBP
$3,954 USD
View
B+
Retailer 7
-
£2,952 GBP
$3,955 USD
View
B+
Retailer 8
-
£2,967 GBP
$3,975 USD
View
B+
Retailer 9
-
£3,034 GBP
A$6,255 AUD
View
B+
Retailer 10
-
£3,101 GBP
$4,156 USD
View
B+
Retailer 11
-
£3,105 GBP
$4,160 USD
View
B+
Retailer 12
-
£3,198 GBP
View
B+
Retailer 13
-
£3,301 GBP
$4,423 USD
View
B+
Retailer 14
-
£3,430 GBP
$4,596 USD
View
B+
Retailer 15
-
£3,449 GBP
View
Retailer 16
-
£3,485 GBP
$4,669 USD
View
Price last confirmed 40 days ago
Retailer 17
-
£3,591 GBP
A$7,402 AUD
View
Price last confirmed 23 days ago
B+
Retailer 18
-
£3,647 GBP
A$7,518 AUD
View
B+
Retailer 19
-
£3,814 GBP
€4,867 EUR
View
B
Retailer 20
-
£4,232 GBP
ZAR 91,603 ZAR
View
B
Retailer 21
-
£5,294 GBP
View
Most Expensive
Wholesale Diamonds Direct
425848094 · Oct 23
£5,482 GBP
$7,346 USD
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from £2,579 GBPSave up to £2,714 GBP

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
£2,579 GBP