CaratHunter
Plans
Round|Lab Grown|IGI

1.57ct F IF Round Lab Grown Diamond

ID • F/IF • IGI LG799694458

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799694458

Diamond specifications and retailer prices

From £258 GBP
$346 USD
As of November 1, 2026
Save £1,208 GBP (82%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,467 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.57ct lab-grown round diamond

This 1.57ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799694458 or 799694458. Listed at 23 retailers as of October 28, 2026, with prices from £258 to £1,467, a £1,208 spread on the same certified stone. Rare Carat lists it at £1,467. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.57
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799694458
Dimensions7.45 × 7.48 × 4.54 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm7.48 mm1.57 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799694458
Side View
Table 58.0%Crown 33.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
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: Nov 1
Current: £1,467 GBP|Low: £258 GBP|High: £1,478 GBP|Avg: £719 GBP|-0.8%
Rare Carat
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 21£258 GBP
Retailer 10£299 GBP
Retailer 4£320 GBP
Retailer 14£320 GBP
Retailer 3£429 GBP
Retailer 20£433 GBP
Retailer 16£454 GBP
Retailer 17£504 GBP
Retailer 5£513 GBP
Retailer 2£552 GBP
Retailer 13£569 GBP
Retailer 6£694 GBP
Retailer 19£743 GBP
Retailer 18£748 GBP
Retailer 7£1,029 GBP
Retailer 8£1,042 GBP
Retailer 12£1,061 GBP
Retailer 9£1,209 GBP
Retailer 15£1,251 GBP
Retailer 11£1,387 GBP
Rare Carat£1,467 GBP

29 data points across 21 retailers

23 retailers£258 GBP to £1,467 GBP

A
Cheapest Retailer
-
£258 GBP
$346 USD
A
Retailer 2
-
£299 GBP
$401 USD
View
Retailer 3
-
£320 GBP
$429 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
£320 GBP
$429 USD
View
A
Retailer 5
-
£363 GBP
HK$3,800 HKD
View
A
Retailer 6
-
£429 GBP
$575 USD
View
A
Retailer 7
-
£433 GBP
$580 USD
View
A
Retailer 8
-
£454 GBP
View
A
Retailer 9
-
£504 GBP
€643 EUR
View
A
Retailer 10
-
£513 GBP
$687 USD
View
A
Retailer 11
-
£552 GBP
ZAR 11,951 ZAR
View
A
Retailer 12
-
£569 GBP
View
B+
Retailer 13
-
£694 GBP
$930 USD
View
B+
Retailer 14
-
£743 GBP
A$1,532 AUD
View
B+
Retailer 15
-
£748 GBP
$1,002 USD
View
B
Retailer 16
-
£1,029 GBP
$1,379 USD
View
B
Retailer 17
-
£1,042 GBP
SGD 1,886 SGD
View
B
Retailer 18
-
£1,061 GBP
$1,421 USD
View
B
Retailer 19
-
£1,139 GBP
$1,526 USD
View
B
Retailer 20
-
£1,209 GBP
$1,620 USD
View
B
Retailer 21
-
£1,251 GBP
View
B
Retailer 22
-
£1,387 GBP
$1,859 USD
View
Most Expensive
B
Rare Carat
AJ-35132239 · Oct 28
£1,467 GBP
$1,965 USD
View
22 more retailers have this diamond
Prices start from £258 GBPSave up to £1,208 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 Round
£258 GBP