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Cushion|Natural|GIA

1.50ct K SI1 Cushion Natural Diamond

VG • K/SI1 • GIA 2211418341

Certificate GIA 2211418341

Diamond specifications and retailer prices

From £3,260 GBP
As of November 6, 2026
Save £3,080 GBP (49%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £6,340 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct natural cushion sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2211418341. Listed at 15 retailers as of November 4, 2026, with prices from £3,260 to £6,340, a £3,080 spread on the same certified stone. MOH London lists it at £6,340. 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
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2211418341
Dimensions7.17 × 6.30 × 4.27 mm
L/W Ratio1.14
Culet sizeNone
Top View
7.17 mm6.30 mm1.50 ctK / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2211418341
Side View
Table 72.0%CrownGirdle: STK-ETKPavilionCulet: NoneDepth 67.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £6,340 GBP|Low: £3,260 GBP|High: £6,434 GBP|Avg: £4,271 GBP|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 9£3,260 GBP
Retailer 6£3,328 GBP
Retailer 10£3,668 GBP
Retailer 8£3,787 GBP
Retailer 5£3,909 GBP
Retailer 7£4,103 GBP
Retailer 3£4,143 GBP
Retailer 2£4,597 GBP
Retailer 4£5,264 GBP
MOH London£6,340 GBP

44 data points across 10 retailers

15 retailers£3,260 GBP to £6,340 GBP

B
Cheapest Retailer
-
£3,260 GBP
B
Retailer 2
-
£3,328 GBP
View
B
Retailer 3
-
£3,371 GBP
View
B
Retailer 4
-
£3,409 GBP
View
B
Retailer 5
-
£3,452 GBP
View
B
Retailer 6
-
£3,668 GBP
View
B
Retailer 7
-
£3,787 GBP
View
Retailer 8
-
£3,909 GBP
View
Price last confirmed 8 days ago
B
Retailer 9
-
£4,103 GBP
View
B
Retailer 10
-
£4,120 GBP
View
B
Retailer 11
-
£4,143 GBP
View
B
Retailer 12
-
£4,597 GBP
View
Retailer 13
-
£4,760 GBP
View
Price last confirmed 14 days ago
C
Retailer 14
-
£5,264 GBP
View
Most Expensive
C
MOH London
CB78CE48E · Nov 4
£6,340 GBP
View
14 more retailers have this diamond
Prices start from £3,260 GBPSave up to £3,080 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.

B
1.50ct Cushion
£3,260 GBP