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Cushion|Lab Grown|IGI

1.73ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG800676915

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG800676915

Diamond specifications and retailer prices

From £625 GBP
$838 USD
As of October 30, 2026
Save £3,144 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,769 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.73ct lab-grown cushion diamond

This 1.73ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800676915 or 800676915. Listed at 10 retailers as of October 30, 2026, with prices from £625 to £3,769, a £3,144 spread on the same certified stone. Do Amore Diamonds lists it at £3,769. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800676915
Dimensions8.35 × 6.41 × 4.20 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.35 mm6.41 mm1.73 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800676915
Side View
Table 60.0%Crown 34°Girdle: MED-THKPavilion 35.6°Culet: NoneDepth 65.5%

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: Oct 30
Current: £3,769 GBP|Low: £625 GBP|High: £4,993 GBP|Avg: £1,751 GBP|-24.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 6£625 GBP
Retailer 8£631 GBP
Retailer 10£660 GBP
Retailer 5£811 GBP
Retailer 9£819 GBP
Retailer 2£932 GBP
Retailer 7£2,172 GBP
Retailer 4£2,303 GBP
Retailer 3£2,672 GBP
Do Amore Diamonds£3,769 GBP

26 data points across 10 retailers

10 retailers£625 GBP to £3,769 GBP

A
Cheapest Retailer
-
£625 GBP
$838 USD
A
Retailer 2
-
£631 GBP
$845 USD
View
A
Retailer 3
-
£660 GBP
$884 USD
View
Final sale: no returns
A
Retailer 4
-
£811 GBP
$1,086 USD
View
A
Retailer 5
-
£819 GBP
$1,097 USD
View
A
Retailer 6
-
£932 GBP
€1,189 EUR
View
Retailer 7
-
£2,172 GBP
$2,910 USD
View
Price last confirmed 11 days ago
B+
Retailer 8
-
£2,303 GBP
View
B
Retailer 9
-
£2,672 GBP
$3,580 USD
View
Most Expensive
B
Do Amore Diamonds
27-6E9161DE6 · Oct 31
£3,769 GBP
$5,050 USD
View
9 more retailers have this diamond
Prices start from £625 GBPSave up to £3,144 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
1.73ct Cushion
£625 GBP