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Heart|Lab Grown|IGI

1.37ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG606348833

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG606348833

Diamond specifications and retailer prices

From £276 GBP
$367 USD
As of October 30, 2026
Save £1,376 GBP (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,652 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.37ct lab-grown heart diamond

This 1.37ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG606348833 or 606348833. Listed at 20 retailers as of October 28, 2026, with prices from £276 to £1,652, a £1,376 spread on the same certified stone. Brilliant Earth lists it at £1,652. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.37
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG606348833
Dimensions6.98 × 7.66 × 4.57 mm
L/W Ratio1.10
Girdle conditionFaceted
Culet sizePointed
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
6.98 mm7.66 mm1.37 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG606348833
Side View
Table 64.0%Crown 35.5°Girdle: ThinPavilion 41.6°Culet: NoneDepth 59.7%

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 30
Current: £1,652 GBP|Low: £237 GBP|High: £1,652 GBP|Avg: £588 GBP
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 30, 2026
Retailer 4£237 GBP
Retailer 7£276 GBP
Retailer 3£306 GBP
Retailer 5£306 GBP
Retailer 2£324 GBP
Retailer 13£412 GBP
Retailer 15£462 GBP
Retailer 9£498 GBP
Retailer 12£525 GBP
Retailer 8£546 GBP
Retailer 6£550 GBP
Retailer 11£741 GBP
Retailer 14£895 GBP
Retailer 10£1,230 GBP
Brilliant Earth£1,652 GBP

42 data points across 15 retailers

20 retailers£276 GBP to £1,652 GBP

Retailer 1
-
£237 GBP
$315 USD
Price last confirmed 28 days ago
A
Retailer 2
-
£276 GBP
$367 USD
View
Final sale: no returns
Retailer 3
-
£285 GBP
$380 USD
View
Price last confirmed 31 days ago
Retailer 4
-
£306 GBP
$407 USD
View
Price last confirmed 27 days ago
A
Retailer 5
-
£324 GBP
View
A
Retailer 6
-
£412 GBP
$548 USD
View
A
Retailer 7
-
£462 GBP
$615 USD
View
A
Retailer 8
-
£498 GBP
€631 EUR
View
A
Retailer 9
-
£525 GBP
ZAR 11,286 ZAR
View
A
Retailer 10
-
£546 GBP
View
A
Retailer 11
-
£550 GBP
$733 USD
View
B+
Retailer 12
-
£656 GBP
$874 USD
View
B+
Retailer 13
-
£741 GBP
A$1,519 AUD
View
B+
Retailer 14
-
£756 GBP
$1,007 USD
View
B+
Retailer 15
-
£895 GBP
$1,192 USD
View
Retailer 16
-
£981 GBP
$1,307 USD
View
Price last confirmed 29 days ago
B
Retailer 17
-
£1,015 GBP
$1,351 USD
View
B
Retailer 18
-
£1,203 GBP
$1,602 USD
View
B
Retailer 19
-
£1,230 GBP
View
Most Expensive
B
Brilliant Earth
10023368A · Oct 28
£1,652 GBP
$2,200 USD
View
19 more retailers have this diamond
Prices start from £276 GBPSave up to £1,376 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
1.37ct Heart
£276 GBP