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Heart|Lab Grown|IGI

1.54ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG639410917

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG639410917

Diamond specifications and retailer prices

From £205 GBP
As of November 6, 2026
Save £1,618 GBP (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,823 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG639410917 or 639410917. Listed at 16 retailers as of November 6, 2026, with prices from £205 to £1,823, a £1,618 spread on the same certified stone. Do Amore Diamonds lists it at £1,823. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG639410917
Dimensions7.39 × 8.19 × 4.41 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.39 mm8.19 mm1.54 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG639410917
Side View
Table 58.0%Crown 36.6°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 53.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: £1,823 GBP|Low: £159 GBP|High: £1,823 GBP|Avg: £549 GBP|+19.0%
Do Amore Diamonds
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
November 6, 2026
Retailer 7£197 GBP
Retailer 15£205 GBP
Retailer 10£238 GBP
Retailer 3£254 GBP
Retailer 8£293 GBP
Retailer 14£309 GBP
Retailer 2£310 GBP
Retailer 6£374 GBP
Retailer 9£492 GBP
Retailer 13£507 GBP
Retailer 12£781 GBP
Retailer 5£874 GBP
Retailer 4£877 GBP
Retailer 11£903 GBP
Retailer 16£1,024 GBP
Do Amore Diamonds£1,823 GBP

35 data points across 16 retailers

16 retailers£205 GBP to £1,823 GBP

Retailer 1
-
£197 GBP
Price last confirmed 12 days ago
A
Retailer 2
-
£205 GBP
View
A
Retailer 3
-
£238 GBP
View
A
Retailer 4
-
£254 GBP
View
B+
Retailer 5
-
£293 GBP
View
A
Retailer 6
-
£309 GBP
View
B+
Retailer 7
-
£310 GBP
View
B+
Retailer 8
-
£374 GBP
View
B+
Retailer 9
-
£492 GBP
View
B+
Retailer 10
-
£507 GBP
View
B
Retailer 11
-
£781 GBP
View
B
Retailer 12
-
£874 GBP
View
Retailer 13
-
£877 GBP
View
Price last confirmed 8 days ago
B
Retailer 14
-
£903 GBP
View
B
Retailer 15
-
£1,024 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9496D356A · Nov 6
£1,823 GBP
$2,440 USD
View
15 more retailers have this diamond
Prices start from £205 GBPSave up to £1,618 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
£205 GBP