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Heart|Lab Grown|IGI

1.81ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG678590671

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG678590671

Diamond specifications and retailer prices

From £267 GBP
$356 USD
As of October 27, 2026
Save £1,400 GBP (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,667 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.81ct lab-grown heart diamond

This 1.81ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG678590671 or 678590671. Listed at 12 retailers as of October 27, 2026, with prices from £267 to £1,667, a £1,400 spread on the same certified stone. Brilliant Earth lists it at £1,667. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.81
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678590671
Dimensions7.73 × 8.42 × 4.98 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Top View
7.73 mm8.42 mm1.81 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678590671
Side View
Table 56.0%Crown 35.4°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 59.1%

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 27
Current: £1,667 GBP|Low: £300 GBP|High: £1,952 GBP|Avg: £939 GBP|-14.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 29, 2026
Retailer 14£300 GBP
Retailer 15£442 GBP
Retailer 2£515 GBP
Retailer 13£532 GBP
Retailer 9£533 GBP
Retailer 5£675 GBP
Retailer 7£724 GBP
Retailer 8£769 GBP
Retailer 11£972 GBP
Retailer 12£1,066 GBP
Retailer 3£1,244 GBP
Retailer 10£1,302 GBP
Retailer 6£1,461 GBP
Retailer 4£1,528 GBP
Brilliant Earth£1,667 GBP

24 data points across 15 retailers

12 retailers£267 GBP to £1,667 GBP

A
Cheapest Retailer
-
£267 GBP
$356 USD
A
Retailer 2
-
£300 GBP
$399 USD
View
Final sale: no returns
A
Retailer 3
-
£310 GBP
$413 USD
View
A
Retailer 4
-
£442 GBP
HK$4,600 HKD
View
B+
Retailer 5
-
£515 GBP
€653 EUR
View
B+
Retailer 6
-
£532 GBP
$708 USD
View
B+
Retailer 7
-
£533 GBP
$710 USD
View
B+
Retailer 8
-
£769 GBP
A$1,576 AUD
View
B
Retailer 9
-
£972 GBP
$1,294 USD
View
B
Retailer 10
-
£1,066 GBP
$1,419 USD
View
B
Retailer 11
-
£1,302 GBP
View
Most Expensive
B
Brilliant Earth
15435809A · Oct 28
£1,667 GBP
$2,220 USD
View
11 more retailers have this diamond
Prices start from £267 GBPSave up to £1,400 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
1.81ct Heart
£267 GBP