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Heart|Lab Grown|IGI

1.54ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG692556212

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG692556212

Diamond specifications and retailer prices

From £284 GBP
$380 USD
As of October 30, 2026
Save £1,792 GBP (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,076 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.54ct lab-grown heart diamond

This 1.54ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG692556212 or 692556212. Listed at 18 retailers as of October 27, 2026, with prices from £284 to £2,076, a £1,792 spread on the same certified stone. Queensmith lists it at £2,076. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.54
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG692556212
Dimensions7.58 × 7.65 × 4.59 mm
L/W Ratio1.01
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
7.58 mm7.65 mm1.54 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG692556212
Side View
Table 58.0%Crown 40.5°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 60.0%

Caratlytics Score

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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: £636 GBP|Low: £228 GBP|High: £1,455 GBP|Avg: £745 GBP|+1.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 16
October 31, 2026
Retailer 4£284 GBP
Retailer 7£316 GBP
Retailer 16£317 GBP
Retailer 10£352 GBP
Retailer 2£463 GBP
Retailer 8£478 GBP
Retailer 13£591 GBP
Retailer 15£604 GBP
Retailer 1£636 GBP
Retailer 3£806 GBP
Retailer 11£815 GBP
Retailer 9£986 GBP
Retailer 14£1,130 GBP
Retailer 5£1,158 GBP
Retailer 6£1,316 GBP
Retailer 12£1,380 GBP

44 data points across 16 retailers

18 retailers£284 GBP to £2,076 GBP

A
Cheapest Retailer
-
£284 GBP
$380 USD
A
Retailer 2
-
£316 GBP
$424 USD
View
Final sale: no returns
A
Retailer 3
-
£317 GBP
$425 USD
View
A
Retailer 4
-
£352 GBP
$471 USD
View
A
Retailer 5
-
£355 GBP
$476 USD
View
A
Retailer 6
-
£463 GBP
$620 USD
View
A
Retailer 7
-
£478 GBP
$640 USD
View
A
Retailer 8
-
£591 GBP
$792 USD
View
A
Retailer 9
-
£604 GBP
ZAR 13,071 ZAR
View
A
Retailer 10
-
£636 GBP
View
A
Retailer 11
-
£806 GBP
$1,080 USD
View
A
Retailer 12
-
£815 GBP
A$1,681 AUD
View
B+
Retailer 13
-
£986 GBP
$1,321 USD
View
B+
Retailer 14
-
£1,130 GBP
$1,514 USD
View
B+
Retailer 15
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£1,158 GBP
$1,552 USD
View
B+
Retailer 16
-
£1,316 GBP
$1,763 USD
View
B+
Retailer 17
-
£1,380 GBP
View
Most Expensive
B
Queensmith
LG692556212 · Oct 27
£2,076 GBP
View
17 more retailers have this diamond
Prices start from £284 GBPSave up to £1,792 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
1.54ct Heart
£284 GBP