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Heart|Lab Grown|IGI

1.56ct E IF Heart Lab Grown Diamond

ID • E/IF • IGI LG836617777

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836617777

Diamond specifications and retailer prices

From £216 GBP
$287 USD
As of October 27, 2026
Save £2,015 GBP (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,230 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.56ct lab-grown heart diamond

This 1.56ct 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 LG836617777 or 836617777. Listed at 21 retailers as of October 27, 2026, with prices from £216 to £2,230, a £2,015 spread on the same certified stone. Brilliant Earth lists it at £2,230. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.56
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836617777
Dimensions7.06 × 7.90 × 4.69 mm
L/W Ratio1.12
Girdle conditionFaceted
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
7.06 mm7.90 mm1.56 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836617777
Side View
Table 62.0%Crown 38.3°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 59.4%

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 27
Current: £2,230 GBP|Low: £216 GBP|High: £2,230 GBP|Avg: £689 GBP
Brilliant Earth
Retailer 2
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Retailer 21
October 29, 2026
Retailer 7£216 GBP
Retailer 9£241 GBP
Retailer 20£250 GBP
Retailer 5£267 GBP
Retailer 12£267 GBP
Retailer 19£278 GBP
Retailer 17£387 GBP
Retailer 10£440 GBP
Retailer 15£459 GBP
Retailer 4£464 GBP
Retailer 2£472 GBP
Retailer 13£621 GBP
Retailer 6£806 GBP
Retailer 18£822 GBP
Retailer 14£859 GBP
Retailer 11£874 GBP
Retailer 8£896 GBP
Retailer 21£939 GBP
Retailer 16£1,073 GBP
Retailer 3£1,137 GBP
Brilliant Earth£2,230 GBP

21 data points across 21 retailers

21 retailers£216 GBP to £2,230 GBP

A
Cheapest Retailer
-
£216 GBP
$287 USD
A
Retailer 2
-
£241 GBP
$321 USD
View
Final sale: no returns
A
Retailer 3
-
£250 GBP
$333 USD
View
A
Retailer 4
-
£267 GBP
$356 USD
View
A
Retailer 5
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£267 GBP
$356 USD
View
Retailer 6
-
£278 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
£387 GBP
$515 USD
View
A
Retailer 8
-
£440 GBP
$586 USD
View
A
Retailer 9
-
£459 GBP
ZAR 9,880 ZAR
View
A
Retailer 10
-
£464 GBP
$618 USD
View
A
Retailer 11
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£472 GBP
View
A
Retailer 12
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£621 GBP
A$1,273 AUD
View
A
Retailer 13
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£806 GBP
$1,073 USD
View
A
Retailer 14
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£822 GBP
$1,094 USD
View
A
Retailer 15
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£859 GBP
$1,144 USD
View
A
Retailer 16
-
£874 GBP
SGD 1,572 SGD
View
A
Retailer 17
-
£896 GBP
$1,193 USD
View
A
Retailer 18
-
£939 GBP
$1,250 USD
View
B+
Retailer 19
-
£1,073 GBP
View
B+
Retailer 20
-
£1,137 GBP
$1,514 USD
View
Most Expensive
B
Brilliant Earth
21738553A · Oct 28
£2,230 GBP
$2,970 USD
View
20 more retailers have this diamond
Prices start from £216 GBPSave up to £2,015 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
1.56ct Heart
£216 GBP