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Heart|Lab Grown|IGI

1.51ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG677507556

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG677507556

Diamond specifications and retailer prices

From £187 GBP
$251 USD
As of October 30, 2026
Save £1,104 GBP (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,291 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown heart diamond

This 1.51ct 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 LG677507556 or 677507556. Listed at 21 retailers as of October 30, 2026, with prices from £187 to £1,291, a £1,104 spread on the same certified stone. Brilliant Earth lists it at £1,291. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677507556
Dimensions7.24 × 8.03 × 4.57 mm
L/W Ratio1.11
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
7.24 mm8.03 mm1.51 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677507556
Side View
Table 58.0%Crown 33.6°Girdle: MED-STKPavilion 41°Culet: NoneDepth 56.9%

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: £1,291 GBP|Low: £180 GBP|High: £1,440 GBP|Avg: £520 GBP|-10.4%
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
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Retailer 17
Retailer 18
October 30, 2026
Retailer 5£187 GBP
Retailer 4£210 GBP
Retailer 9£218 GBP
Retailer 6£233 GBP
Retailer 18£233 GBP
Retailer 15£273 GBP
Retailer 17£358 GBP
Retailer 8£390 GBP
Retailer 11£392 GBP
Retailer 13£400 GBP
Retailer 10£429 GBP
Retailer 2£443 GBP
Retailer 14£542 GBP
Retailer 16£603 GBP
Retailer 7£748 GBP
Retailer 3£916 GBP
Retailer 12£937 GBP
Brilliant Earth£1,291 GBP

43 data points across 18 retailers

21 retailers£187 GBP to £1,291 GBP

A
Cheapest Retailer
-
£187 GBP
$251 USD
A
Retailer 2
-
£210 GBP
$281 USD
View
Final sale: no returns
A
Retailer 3
-
£218 GBP
$292 USD
View
A
Retailer 4
-
£233 GBP
$312 USD
View
A
Retailer 5
-
£233 GBP
$312 USD
View
Retailer 6
-
£273 GBP
View
Price last confirmed 13 days ago
A
Retailer 7
-
£358 GBP
$480 USD
View
B+
Retailer 8
-
£389 GBP
$521 USD
View
B+
Retailer 9
-
£390 GBP
$522 USD
View
B+
Retailer 10
-
£392 GBP
€500 EUR
View
A
Retailer 11
-
£400 GBP
ZAR 8,653 ZAR
View
B+
Retailer 12
-
£429 GBP
$575 USD
View
B+
Retailer 13
-
£443 GBP
View
B+
Retailer 14
-
£542 GBP
A$1,118 AUD
View
B+
Retailer 15
-
£603 GBP
$808 USD
View
B
Retailer 16
-
£718 GBP
$962 USD
View
B
Retailer 17
-
£748 GBP
$1,002 USD
View
B
Retailer 18
-
£786 GBP
$1,054 USD
View
B
Retailer 19
-
£916 GBP
$1,227 USD
View
B
Retailer 20
-
£937 GBP
View
Most Expensive
B
Brilliant Earth
14978679A · Oct 30
£1,291 GBP
$1,730 USD
View
20 more retailers have this diamond
Prices start from £187 GBPSave up to £1,104 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
1.51ct Heart
£187 GBP