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Heart|Lab Grown|IGI

1.73ct E VS2 Heart Lab Grown Diamond

EX • E/VS2 • IGI LG831646917

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831646917

Diamond specifications and retailer prices

From £207 GBP
$276 USD
As of October 30, 2026
Save £101 GBP (33%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £1,750 GBP at Brilliant Earth · As of October 8, 2026
View at Brilliant Earth

About this 1.73ct lab-grown heart diamond

This 1.73ct lab-grown heart 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 LG831646917 or 831646917. Listed at 3 retailers as of October 30, 2026, with a 49% 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 angle34.8°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831646917
Dimensions7.29 × 8.46 × 4.88 mm
L/W Ratio1.16
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.29 mm8.46 mm1.73 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831646917
Side View
Table 58.0%Crown 34.8°Girdle: THN-MEDPavilion 38.5°Culet: NoneDepth 57.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £1,750 GBP|Low: £207 GBP|High: £1,750 GBP|Avg: £586 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 28, 2026
Retailer 2£207 GBP
Retailer 3£308 GBP
Retailer 4£443 GBP
Retailer 6£468 GBP
Retailer 5£726 GBP
Brilliant Earth£1,750 GBP

18 data points across 6 retailers

3 retailers£207 GBP to £308 GBP

A
Cheapest Retailer
-
£207 GBP
$276 USD
Final sale: no returns
B+
Retailer 2
-
£308 GBP
$410 USD
View
Most Expensive
Brilliant Earth
21232453A · Oct 8
£1,750 GBP
$2,330 USD
View
Price last confirmed 21 days ago
2 more retailers have this diamond
Prices start from £207 GBPSave up to £101 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 Heart
£207 GBP