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Cushion|Lab Grown|IGI

1.73ct E VS2 Cushion Lab Grown Diamond

EX • E/VS2 • IGI LG837694678

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG837694678

Diamond specifications and retailer prices

From £228 GBP
As of October 29, 2026
Save £553 GBP (71%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £882 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

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 E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837694678 or 837694678. Listed at 5 retailers as of October 29, 2026, with a 243% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
E
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837694678
Dimensions8.37 × 6.20 × 4.25 mm
L/W Ratio1.35
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.37 mm6.20 mm1.73 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837694678
Side View
Table 60.0%Crown 37.2°Girdle: MED-STKPavilion 37.8°CuletDepth 68.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: £882 GBP|Low: £227 GBP|High: £894 GBP|Avg: £569 GBP|-1.3%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 29, 2026
Retailer 4£228 GBP
Retailer 2£328 GBP
Retailer 5£529 GBP
Retailer 3£781 GBP
Rare Carat£882 GBP

25 data points across 5 retailers

5 retailers£228 GBP to £781 GBP

A
Cheapest Retailer
-
£228 GBP
A
Retailer 2
-
£328 GBP
€416 EUR
View
B+
Retailer 3
-
£529 GBP
$705 USD
View
B+
Retailer 4
-
£781 GBP
View
Most Expensive
Rare Carat
LGLCU15-154079 · Oct 21
£882 GBP
$1,175 USD
View
Price last confirmed 8 days ago
4 more retailers have this diamond
Prices start from £228 GBPSave up to £553 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
£228 GBP