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Heart|Lab Grown|IGI

1.57ct D IF Heart Lab Grown Diamond

D/IF • IGI LG763605715

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG763605715

Diamond specifications and retailer prices

From £610 GBP
$817 USD
As of October 30, 2026
Save £2,808 GBP (82%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £3,418 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.57ct lab-grown heart diamond

This 1.57ct 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) and certified by IGI LG763605715 or 763605715. Listed at 25 retailers as of October 30, 2026, with prices from £610 to £3,418, a £2,808 spread on the same certified stone. Brilliant Earth lists it at £3,418. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.57
Carat
D
Colour
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763605715
Dimensions7.16 × 8.11 × 4.82 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.16 mm8.11 mm1.57 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG763605715
Side View
Table 54.0%Crown 33°Girdle: MED-STKPavilion 39.8°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 30
Current: £3,418 GBP|Low: £585 GBP|High: £3,418 GBP|Avg: £1,593 GBP
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 1, 2026
Retailer 18£610 GBP
Retailer 6£663 GBP
Retailer 10£682 GBP
Retailer 4£708 GBP
Retailer 16£840 GBP
Retailer 8£883 GBP
Retailer 15£1,060 GBP
Retailer 14£1,086 GBP
Retailer 2£1,086 GBP
Retailer 13£1,300 GBP
Retailer 17£1,469 GBP
Retailer 5£1,989 GBP
Retailer 3£2,260 GBP
Retailer 7£2,379 GBP
Retailer 9£2,485 GBP
Retailer 12£2,666 GBP
Retailer 11£2,705 GBP
Brilliant Earth£3,418 GBP

46 data points across 18 retailers

25 retailers£610 GBP to £3,418 GBP

A
Cheapest Retailer
-
£610 GBP
$817 USD
A
Retailer 2
-
£663 GBP
$889 USD
View
A
Retailer 3
-
£682 GBP
$914 USD
View
Final sale: no returns
B+
Retailer 4
-
£708 GBP
$948 USD
View
Retailer 5
-
£708 GBP
$948 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
£822 GBP
HK$8,600 HKD
View
B+
Retailer 7
-
£840 GBP
$1,125 USD
View
B+
Retailer 8
-
£883 GBP
$1,183 USD
View
B+
Retailer 9
-
£939 GBP
$1,258 USD
View
B+
Retailer 10
-
£1,060 GBP
$1,420 USD
View
B
Retailer 11
-
£1,086 GBP
A$2,238 AUD
View
B+
Retailer 12
-
£1,086 GBP
View
B+
Retailer 13
-
£1,300 GBP
ZAR 28,147 ZAR
View
B
Retailer 14
-
£1,469 GBP
$1,968 USD
View
B
Retailer 15
-
£1,481 GBP
$1,985 USD
View
B
Retailer 16
-
£1,989 GBP
$2,665 USD
View
B
Retailer 17
-
£2,214 GBP
$2,966 USD
View
B
Retailer 18
-
£2,260 GBP
$3,028 USD
View
B
Retailer 19
-
£2,361 GBP
$3,163 USD
View
B
Retailer 20
-
£2,379 GBP
SGD 4,307 SGD
View
B
Retailer 21
-
£2,449 GBP
$3,281 USD
View
B
Retailer 22
-
£2,536 GBP
$3,398 USD
View
B
Retailer 23
-
£2,666 GBP
View
B
Retailer 24
-
£2,705 GBP
A$5,577 AUD
View
Most Expensive
B
Brilliant Earth
17173206A · Oct 31
£3,418 GBP
$4,580 USD
View
24 more retailers have this diamond
Prices start from £610 GBPSave up to £2,808 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
1.57ct Heart
£610 GBP