CaratHunter
Plans
Marquise|Lab Grown|IGI

1.03ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG791628789

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG791628789

Diamond specifications and retailer prices

From £193 GBP
$258 USD
As of October 30, 2026
Save £837 GBP (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,029 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG791628789 or 791628789. Listed at 23 retailers as of October 30, 2026, with prices from £193 to £1,029, a £837 spread on the same certified stone. Reve Diamonds lists it at £1,029. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791628789
Dimensions5.19 × 5.19 × 10.73 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
5.19 mm5.19 mm1.03 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791628789
Side View
Table 60.0%Crown 34.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.2%

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: £193 GBP|Low: £193 GBP|High: £1,126 GBP|Avg: £572 GBP|-10.4%
Retailer 1
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
Reve Diamonds
October 30, 2026
Retailer 1£193 GBP
Retailer 21£215 GBP
Retailer 19£239 GBP
Retailer 10£240 GBP
Retailer 11£256 GBP
Retailer 12£321 GBP
Retailer 6£347 GBP
Retailer 7£436 GBP
Retailer 13£437 GBP
Retailer 5£440 GBP
Retailer 16£449 GBP
Retailer 15£456 GBP
Retailer 14£499 GBP
Retailer 4£623 GBP
Retailer 3£768 GBP
Retailer 9£787 GBP
Retailer 18£795 GBP
Retailer 17£806 GBP
Retailer 20£840 GBP
Retailer 8£847 GBP
Retailer 2£962 GBP
Reve Diamonds£1,029 GBP

37 data points across 22 retailers

23 retailers£193 GBP to £1,029 GBP

A
Cheapest Retailer
-
£193 GBP
$258 USD
A
Retailer 2
-
£215 GBP
$288 USD
View
Final sale: no returns
A
Retailer 3
-
£239 GBP
$320 USD
View
A
Retailer 4
-
£240 GBP
$321 USD
View
A
Retailer 5
-
£256 GBP
$343 USD
View
Retailer 6
-
£274 GBP
$367 USD
View
Price last confirmed 35 days ago
A
Retailer 7
-
£321 GBP
$430 USD
View
A
Retailer 8
-
£347 GBP
$465 USD
View
A
Retailer 9
-
£436 GBP
€557 EUR
View
A
Retailer 10
-
£437 GBP
$585 USD
View
A
Retailer 11
-
£440 GBP
ZAR 9,527 ZAR
View
A
Retailer 12
-
£449 GBP
$601 USD
View
A
Retailer 13
-
£456 GBP
View
B+
Retailer 14
-
£499 GBP
A$1,028 AUD
View
B+
Retailer 15
-
£623 GBP
A$1,285 AUD
View
B+
Retailer 16
-
£768 GBP
$1,029 USD
View
B
Retailer 17
-
£787 GBP
$1,054 USD
View
B+
Retailer 18
-
£795 GBP
A$1,639 AUD
View
B+
Retailer 19
-
£806 GBP
$1,080 USD
View
B+
Retailer 20
-
£840 GBP
$1,125 USD
View
B+
Retailer 21
-
£847 GBP
$1,135 USD
View
B
Retailer 22
-
£962 GBP
View
Most Expensive
B
Reve Diamonds
1DC68D5CB · Oct 30
£1,029 GBP
$1,379 USD
View
22 more retailers have this diamond
Prices start from £193 GBPSave up to £837 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
1.03ct Marquise
£193 GBP