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Heart|Lab Grown|IGI

1.51ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG769629117

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG769629117

Diamond specifications and retailer prices

From £287 GBP
$384 USD
As of October 30, 2026
Save £2,258 GBP (89%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,545 GBP at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG769629117 or 769629117. Listed at 21 retailers as of October 30, 2026, with prices from £287 to £2,545, a £2,258 spread on the same certified stone. Do Amore Diamonds lists it at £2,545. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG769629117
Dimensions6.83 × 7.86 × 4.69 mm
L/W Ratio1.15
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
6.83 mm7.86 mm1.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG769629117
Side View
Table 58.0%Crown 38.3°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 59.7%

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: £2,545 GBP|Low: £275 GBP|High: £2,545 GBP|Avg: £876 GBP
Do Amore Diamonds
Retailer 2
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November 1, 2026
Retailer 21£287 GBP
Retailer 9£319 GBP
Retailer 20£321 GBP
Retailer 3£355 GBP
Retailer 6£355 GBP
Retailer 17£466 GBP
Retailer 18£487 GBP
Retailer 4£537 GBP
Retailer 11£565 GBP
Retailer 8£603 GBP
Retailer 2£646 GBP
Retailer 16£673 GBP
Retailer 13£913 GBP
Retailer 19£996 GBP
Retailer 12£1,259 GBP
Retailer 5£1,322 GBP
Retailer 7£1,328 GBP
Retailer 14£1,373 GBP
Retailer 10£1,397 GBP
Retailer 15£1,446 GBP
Do Amore Diamonds£2,545 GBP

43 data points across 21 retailers

21 retailers£287 GBP to £2,545 GBP

A
Cheapest Retailer
-
£287 GBP
$384 USD
A
Retailer 2
-
£319 GBP
$428 USD
View
Final sale: no returns
A
Retailer 3
-
£321 GBP
$430 USD
View
Retailer 4
-
£355 GBP
$476 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£355 GBP
$476 USD
View
A
Retailer 6
-
£466 GBP
$625 USD
View
A
Retailer 7
-
£487 GBP
HK$5,100 HKD
View
A
Retailer 8
-
£537 GBP
$720 USD
View
A
Retailer 9
-
£565 GBP
$757 USD
View
A
Retailer 10
-
£603 GBP
$808 USD
View
A
Retailer 11
-
£646 GBP
View
A
Retailer 12
-
£673 GBP
ZAR 14,573 ZAR
View
B+
Retailer 13
-
£913 GBP
A$1,881 AUD
View
B+
Retailer 14
-
£996 GBP
$1,334 USD
View
B+
Retailer 15
-
£1,259 GBP
$1,687 USD
View
B+
Retailer 16
-
£1,322 GBP
$1,771 USD
View
B+
Retailer 17
-
£1,328 GBP
$1,779 USD
View
B+
Retailer 18
-
£1,373 GBP
$1,839 USD
View
B+
Retailer 19
-
£1,397 GBP
SGD 2,530 SGD
View
B+
Retailer 20
-
£1,446 GBP
View
Most Expensive
B
Do Amore Diamonds
27-F25455095 · Nov 1
£2,545 GBP
$3,410 USD
View
20 more retailers have this diamond
Prices start from £287 GBPSave up to £2,258 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
£287 GBP