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Heart|Lab Grown|IGI

1.46ct E IF Heart Lab Grown Diamond

EX • E/IF • IGI LG618403131

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG618403131

Diamond specifications and retailer prices

From £707 GBP
$947 USD
As of October 30, 2026
Save £2,084 GBP (75%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,791 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 1.46ct lab-grown heart diamond

This 1.46ct 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 LG618403131 or 618403131. Listed at 20 retailers as of October 30, 2026, with prices from £707 to £2,791, a £2,084 spread on the same certified stone. With Clarity lists it at £2,791. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.46
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.2°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618403131
Dimensions7.55 × 7.86 × 4.57 mm
L/W Ratio1.04
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
7.55 mm7.86 mm1.46 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG618403131
Side View
Table 55.0%Crown 34.2°Girdle: MED-STKPavilion 39°Culet: NoneDepth 58.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,590 GBP|Low: £579 GBP|High: £2,791 GBP|Avg: £1,186 GBP|-29.7%
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
Retailer 14
Retailer 15
Retailer 16
With Clarity
October 30, 2026
Retailer 8£579 GBP
Retailer 6£700 GBP
Retailer 7£700 GBP
Retailer 14£707 GBP
Retailer 9£778 GBP
Retailer 5£843 GBP
Retailer 12£860 GBP
Retailer 15£958 GBP
Retailer 2£984 GBP
Retailer 10£1,050 GBP
Retailer 11£1,098 GBP
Retailer 13£1,261 GBP
Retailer 1£1,590 GBP
Retailer 4£1,665 GBP
Retailer 16£2,373 GBP
Retailer 3£2,638 GBP
With Clarity£2,791 GBP

39 data points across 17 retailers

20 retailers£707 GBP to £2,791 GBP

Retailer 1
-
£579 GBP
$776 USD
Price last confirmed 28 days ago
Retailer 2
-
£657 GBP
$880 USD
View
Price last confirmed 31 days ago
Retailer 3
-
£700 GBP
$938 USD
View
Price last confirmed 27 days ago
Retailer 4
-
£700 GBP
$938 USD
View
Price last confirmed 13 days ago
B+
Retailer 5
-
£707 GBP
$947 USD
View
Final sale: no returns
B+
Retailer 6
-
£778 GBP
View
B+
Retailer 7
-
£843 GBP
$1,130 USD
View
B+
Retailer 8
-
£860 GBP
$1,152 USD
View
B+
Retailer 9
-
£958 GBP
$1,283 USD
View
B+
Retailer 10
-
£984 GBP
$1,318 USD
View
B+
Retailer 11
-
£1,050 GBP
View
B+
Retailer 12
-
£1,098 GBP
€1,401 EUR
View
B+
Retailer 13
-
£1,261 GBP
ZAR 27,305 ZAR
View
B
Retailer 14
-
£1,590 GBP
$2,130 USD
View
B
Retailer 15
-
£1,665 GBP
$2,231 USD
View
Retailer 16
-
£1,968 GBP
$2,637 USD
View
Price last confirmed 29 days ago
B
Retailer 17
-
£2,261 GBP
$3,030 USD
View
B
Retailer 18
-
£2,373 GBP
$3,179 USD
View
Retailer 19
-
£2,638 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
With Clarity
618403131 · Oct 30
£2,791 GBP
$3,739 USD
View
19 more retailers have this diamond
Prices start from £707 GBPSave up to £2,084 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.

B+
1.46ct Heart
£707 GBP