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Heart|Lab Grown|IGI

1.71ct E VS2 Heart Lab Grown Diamond

EX • E/VS2 • IGI LG591374132

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG591374132

Diamond specifications and retailer prices

From £248 GBP
$330 USD
As of October 28, 2026
Save £875 GBP (78%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,122 GBP at Michael Trio · As of October 29, 2026
View at Michael Trio

About this 1.71ct lab-grown heart diamond

This 1.71ct 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 LG591374132 or 591374132. Listed at 7 retailers as of October 28, 2026, with prices from £248 to £1,122, a £875 spread on the same certified stone. Michael Trio lists it at £1,122. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
E
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591374132
Dimensions8.26 × 8.26 × 7.20 mm
L/W Ratio1.00
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
8.26 mm8.26 mm1.71 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591374132
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 58.6%

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: Oct 28
Current: £1,122 GBP|Low: £176 GBP|High: £1,127 GBP|Avg: £539 GBP|-0.4%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 29, 2026
Retailer 5£248 GBP
Retailer 6£375 GBP
Retailer 7£384 GBP
Retailer 4£390 GBP
Retailer 3£526 GBP
Retailer 2£827 GBP
Michael Trio£1,122 GBP

16 data points across 7 retailers

7 retailers£248 GBP to £1,122 GBP

A
Cheapest Retailer
-
£248 GBP
$330 USD
Final sale: no returns
A
Retailer 2
-
£375 GBP
$500 USD
View
A
Retailer 3
-
£384 GBP
HK$4,000 HKD
View
A
Retailer 4
-
£390 GBP
$520 USD
View
B+
Retailer 5
-
£526 GBP
A$1,078 AUD
View
B
Retailer 6
-
£827 GBP
A$1,694 AUD
View
Most Expensive
B
Michael Trio
5110039130 · Oct 29
£1,122 GBP
SGD 2,020 SGD
View
6 more retailers have this diamond
Prices start from £248 GBPSave up to £875 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
1.71ct Heart
£248 GBP