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Princess|Lab Grown|IGI

1.57ct D IF Princess Lab Grown Diamond

ID • D/IF • IGI LG742549089

Shape and cutting style on the report: Princess cut

Certificate IGI LG742549089

Diamond specifications and retailer prices

From £481 GBP
$644 USD
As of October 30, 2026
Save £3,788 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,269 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.57ct lab-grown princess diamond

This 1.57ct lab-grown princess 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 LG742549089 or 742549089. Listed at 18 retailers as of October 29, 2026, with prices from £481 to £4,269, a £3,788 spread on the same certified stone. Do Amore Diamonds lists it at £4,269. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742549089
Dimensions6.43 × 6.28 × 4.42 mm
L/W Ratio1.02
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
6.43 mm6.28 mm1.57 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742549089
Side View
Table 67.0%Crown 44.5°Girdle: Slightly ThickPavilion 37.7°Culet: NoneDepth 70.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £4,269 GBP|Low: £472 GBP|High: £4,269 GBP|Avg: £1,399 GBP
Do Amore Diamonds
Retailer 2
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Retailer 19
October 30, 2026
Retailer 14£481 GBP
Retailer 4£523 GBP
Retailer 10£549 GBP
Retailer 16£675 GBP
Retailer 7£694 GBP
Retailer 12£698 GBP
Retailer 11£707 GBP
Retailer 15£910 GBP
Retailer 13£1,005 GBP
Retailer 17£1,425 GBP
Retailer 5£1,564 GBP
Retailer 3£1,654 GBP
Retailer 19£1,731 GBP
Retailer 6£1,974 GBP
Retailer 8£2,199 GBP
Retailer 2£2,329 GBP
Retailer 9£2,373 GBP
Retailer 18£2,421 GBP
Do Amore Diamonds£4,269 GBP

40 data points across 19 retailers

18 retailers£481 GBP to £4,269 GBP

A
Cheapest Retailer
-
£481 GBP
$644 USD
A
Retailer 2
-
£523 GBP
$701 USD
View
A
Retailer 3
-
£549 GBP
$736 USD
View
Final sale: no returns
A
Retailer 4
-
£675 GBP
$904 USD
View
A
Retailer 5
-
£694 GBP
$930 USD
View
A
Retailer 6
-
£698 GBP
View
A
Retailer 7
-
£707 GBP
$947 USD
View
A
Retailer 8
-
£910 GBP
$1,219 USD
View
A
Retailer 9
-
£1,005 GBP
€1,282 EUR
View
B+
Retailer 10
-
£1,425 GBP
$1,909 USD
View
Retailer 11
-
£1,564 GBP
A$3,225 AUD
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£1,654 GBP
$2,216 USD
View
B+
Retailer 13
-
£1,731 GBP
$2,320 USD
View
Retailer 14
-
£1,974 GBP
$2,645 USD
View
Price last confirmed 12 days ago
Retailer 15
-
£2,199 GBP
A$4,532 AUD
View
Price last confirmed 26 days ago
B+
Retailer 16
-
£2,329 GBP
$3,120 USD
View
B+
Retailer 17
-
£2,421 GBP
View
Most Expensive
B
Do Amore Diamonds
27-8BAA6D84D · Oct 29
£4,269 GBP
$5,720 USD
View
17 more retailers have this diamond
Prices start from £481 GBPSave up to £3,788 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 Princess
£481 GBP