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Radiant|Lab Grown|IGI

1.57ct E FL Radiant Lab Grown Diamond

ID • E/FL • IGI LG818659743

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG818659743

Diamond specifications and retailer prices

From £588 GBP
$788 USD
As of October 30, 2026
Save £2,069 GBP (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £2,657 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.57ct lab-grown radiant diamond

This 1.57ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818659743 or 818659743. Listed at 8 retailers as of October 30, 2026, with prices from £588 to £2,657, a £2,069 spread on the same certified stone. Do Amore Diamonds lists it at £2,657. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle32.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818659743
Dimensions8.33 × 5.70 × 3.75 mm
L/W Ratio1.46
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
8.33 mm5.70 mm1.57 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818659743
Side View
Table 64.0%Crown 40.9°Girdle: MED-STKPavilion 32.5°Culet: NoneDepth 65.8%

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: £2,657 GBP|Low: £378 GBP|High: £3,411 GBP|Avg: £1,486 GBP|-22.1%
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
October 31, 2026
Retailer 12£378 GBP
Retailer 8£588 GBP
Retailer 2£590 GBP
Retailer 11£873 GBP
Retailer 3£894 GBP
Retailer 7£990 GBP
Retailer 10£1,308 GBP
Retailer 6£1,514 GBP
Retailer 4£1,842 GBP
Retailer 5£2,209 GBP
Retailer 9£2,635 GBP
Do Amore Diamonds£2,657 GBP

17 data points across 12 retailers

8 retailers£588 GBP to £2,657 GBP

A
Cheapest Retailer
-
£588 GBP
$788 USD
A
Retailer 2
-
£590 GBP
$790 USD
View
B+
Retailer 3
-
£990 GBP
$1,327 USD
View
B+
Retailer 4
-
£1,308 GBP
$1,752 USD
View
B+
Retailer 5
-
£1,514 GBP
View
B
Retailer 6
-
£2,209 GBP
$2,960 USD
View
Retailer 7
-
£2,635 GBP
$3,530 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Do Amore Diamonds
27-0AF752300 · Oct 30
£2,657 GBP
$3,560 USD
View
7 more retailers have this diamond
Prices start from £588 GBPSave up to £2,069 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 Radiant
£588 GBP