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Cushion|Lab Grown|IGI

1.72ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG480152392

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG480152392

Diamond specifications and retailer prices

From £371 GBP
$497 USD
As of November 1, 2026
Save £1,935 GBP (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,306 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.72ct lab-grown cushion diamond

This 1.72ct lab-grown cushion sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG480152392 or 480152392. Listed at 11 retailers as of October 31, 2026, with prices from £371 to £2,306, a £1,935 spread on the same certified stone. Do Amore Diamonds lists it at £2,306. 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

1.72
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480152392
Dimensions7.54 × 6.74 × 4.42 mm
L/W Ratio1.12
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.54 mm6.74 mm1.72 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480152392
Side View
Table 64.5%Crown 32.4°Girdle: MED-THKPavilion 39.1°Culet: 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: Nov 1
Current: £2,306 GBP|Low: £322 GBP|High: £2,306 GBP|Avg: £871 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7£322 GBP
Retailer 6£373 GBP
Retailer 3£456 GBP
Retailer 9£519 GBP
Retailer 10£519 GBP
Retailer 4£645 GBP
Retailer 8£1,015 GBP
Retailer 2£1,390 GBP
Retailer 5£1,613 GBP
Do Amore Diamonds£2,306 GBP

43 data points across 10 retailers

11 retailers£371 GBP to £2,306 GBP

Retailer 1
-
£322 GBP
$432 USD
Price last confirmed 7 days ago
A
Retailer 2
-
£371 GBP
$497 USD
View
A
Retailer 3
-
£373 GBP
$500 USD
View
A
Retailer 4
-
£456 GBP
View
A
Retailer 5
-
£519 GBP
$695 USD
View
A
Retailer 6
-
£519 GBP
$695 USD
View
B+
Retailer 7
-
£645 GBP
View
B
Retailer 8
-
£1,015 GBP
$1,360 USD
View
B
Retailer 9
-
£1,390 GBP
View
B
Retailer 10
-
£1,613 GBP
CA$3,002 CAD
View
Most Expensive
B
Do Amore Diamonds
27-EE311796C · Oct 31
£2,306 GBP
$3,090 USD
View
10 more retailers have this diamond
Prices start from £371 GBPSave up to £1,935 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
1.72ct Cushion
£371 GBP