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Cushion|Lab Grown|IGI

1.75ct F SI1 Cushion Lab Grown Diamond

VG • F/SI1 • IGI LG816608070

Shape and cutting style on the report: Cushion mixed cut

Certificate IGI LG816608070

Diamond specifications and retailer prices

From £288 GBP
$386 USD
As of November 1, 2026
Save £958 GBP (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,245 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.75ct lab-grown cushion diamond

This 1.75ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG816608070 or 816608070. Listed at 13 retailers as of November 1, 2026, with prices from £288 to £1,245, a £958 spread on the same certified stone. MOH London lists it at £1,245. 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

1.75
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle36.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608070
Dimensions9.11 × 5.88 × 3.52 mm
L/W Ratio1.55
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.11 mm5.88 mm1.75 ctF / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608070
Side View
Table 54.0%Crown 32.6°Girdle: STK-VTKPavilion 36.1°Culet: LargeDepth 59.9%

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: £1,245 GBP|Low: £288 GBP|High: £1,252 GBP|Avg: £641 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 3£288 GBP
Retailer 12£353 GBP
Retailer 9£428 GBP
Retailer 8£432 GBP
Retailer 13£479 GBP
Retailer 7£508 GBP
Retailer 10£516 GBP
Retailer 6£573 GBP
Retailer 11£700 GBP
Retailer 2£801 GBP
Retailer 4£1,019 GBP
Retailer 5£1,056 GBP
MOH London£1,245 GBP

15 data points across 13 retailers

13 retailers£288 GBP to £1,245 GBP

A
Cheapest Retailer
-
£288 GBP
$386 USD
Final sale: no returns
B+
Retailer 2
-
£353 GBP
HK$3,700 HKD
View
B+
Retailer 3
-
£428 GBP
$575 USD
View
A
Retailer 4
-
£432 GBP
$580 USD
View
B+
Retailer 5
-
£479 GBP
$643 USD
View
B+
Retailer 6
-
£508 GBP
€649 EUR
View
B+
Retailer 7
-
£516 GBP
$693 USD
View
B+
Retailer 8
-
£573 GBP
View
B+
Retailer 9
-
£700 GBP
$940 USD
View
B
Retailer 10
-
£801 GBP
$1,075 USD
View
B
Retailer 11
-
£1,019 GBP
SGD 1,847 SGD
View
B
Retailer 12
-
£1,056 GBP
$1,418 USD
View
Most Expensive
B
MOH London
LG816608070 · Nov 1
£1,245 GBP
View
12 more retailers have this diamond
Prices start from £288 GBPSave up to £958 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
1.75ct Cushion
£288 GBP