CaratHunter
Plans
Oval|Lab Grown|IGI

1.57ct E FL Oval Lab Grown Diamond

ID • E/FL • IGI LG799670500

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG799670500

Diamond specifications and retailer prices

From £394 GBP
HK$4,100 HKD
As of October 30, 2026
Save £2,441 GBP (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,835 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.57ct lab-grown oval diamond

This 1.57ct lab-grown oval 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 LG799670500 or 799670500. Listed at 13 retailers as of October 28, 2026, with prices from £394 to £2,835, a £2,441 spread on the same certified stone. Rare Carat lists it at £2,835. 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 angle36.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799670500
Dimensions9.46 × 6.42 × 4.03 mm
L/W Ratio1.47
Girdle conditionFaceted
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
9.46 mm6.42 mm1.57 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799670500
Side View
Table 59.0%Crown 36.6°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 62.8%

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: Oct 30
Current: £2,835 GBP|Low: £394 GBP|High: £3,522 GBP|Avg: £1,237 GBP|-1.3%
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
October 30, 2026
Retailer 4£394 GBP
Retailer 3£421 GBP
Retailer 8£466 GBP
Retailer 6£486 GBP
Retailer 2£531 GBP
Retailer 12£639 GBP
Retailer 10£674 GBP
Retailer 5£800 GBP
Retailer 13£1,078 GBP
Retailer 7£1,194 GBP
Retailer 9£1,893 GBP
Retailer 11£2,426 GBP
Rare Carat£2,835 GBP

43 data points across 13 retailers

13 retailers£394 GBP to £2,835 GBP

A
Cheapest Retailer
-
£394 GBP
HK$4,100 HKD
A
Retailer 2
-
£421 GBP
$560 USD
View
A
Retailer 3
-
£466 GBP
$621 USD
View
A
Retailer 4
-
£486 GBP
€616 EUR
View
A
Retailer 5
-
£531 GBP
View
A
Retailer 6
-
£639 GBP
$851 USD
View
A
Retailer 7
-
£674 GBP
$898 USD
View
B+
Retailer 8
-
£800 GBP
A$1,638 AUD
View
B+
Retailer 9
-
£1,078 GBP
$1,436 USD
View
B+
Retailer 10
-
£1,194 GBP
View
B
Retailer 11
-
£1,893 GBP
$2,521 USD
View
B
Retailer 12
-
£2,426 GBP
$3,230 USD
View
Most Expensive
B
Rare Carat
2379-u · Oct 28
£2,835 GBP
$3,775 USD
View
12 more retailers have this diamond
Prices start from £394 GBPSave up to £2,441 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 Oval
£394 GBP