CaratHunter
Plans
Round|Lab Grown|IGI

1.03ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG733573874

Shape and cutting style on the report: Round brilliant

Certificate IGI LG733573874

Diamond specifications and retailer prices

From £140 GBP
$187 USD
As of October 29, 2026
Save £851 GBP (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £991 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round 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 LG733573874 or 733573874. Listed at 22 retailers as of October 28, 2026, with prices from £140 to £991, a £851 spread on the same certified stone. Brilliant Earth lists it at £991. 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 angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733573874
Dimensions6.46 × 6.50 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.46 mm6.50 mm1.03 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733573874
Side View
Table 55.0%Crown 35.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.0%

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 29
Current: £991 GBP|Low: £157 GBP|High: £991 GBP|Avg: £412 GBP
Brilliant Earth
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
October 30, 2026
Retailer 6£157 GBP
Retailer 16£163 GBP
Retailer 8£237 GBP
Retailer 10£288 GBP
Retailer 12£296 GBP
Retailer 14£300 GBP
Retailer 2£316 GBP
Retailer 3£361 GBP
Retailer 18£390 GBP
Retailer 4£411 GBP
Retailer 15£426 GBP
Retailer 17£444 GBP
Retailer 9£477 GBP
Retailer 13£580 GBP
Retailer 5£602 GBP
Retailer 11£820 GBP
Retailer 7£866 GBP
Brilliant Earth£991 GBP

44 data points across 18 retailers

22 retailers£140 GBP to £991 GBP

A
Cheapest Retailer
-
£140 GBP
$187 USD
A
Retailer 2
-
£157 GBP
$209 USD
View
Final sale: no returns
A
Retailer 3
-
£163 GBP
$217 USD
View
A
Retailer 4
-
£174 GBP
$232 USD
View
A
Retailer 5
-
£174 GBP
$232 USD
View
A
Retailer 6
-
£237 GBP
$315 USD
View
Retailer 7
-
£288 GBP
View
Price last confirmed 15 days ago
A
Retailer 8
-
£296 GBP
€375 EUR
View
A
Retailer 9
-
£300 GBP
ZAR 6,447 ZAR
View
A
Retailer 10
-
£316 GBP
View
A
Retailer 11
-
£361 GBP
$481 USD
View
A
Retailer 12
-
£390 GBP
A$798 AUD
View
B+
Retailer 13
-
£411 GBP
$547 USD
View
B+
Retailer 14
-
£426 GBP
A$872 AUD
View
B+
Retailer 15
-
£444 GBP
$591 USD
View
B+
Retailer 16
-
£477 GBP
SGD 858 SGD
View
B+
Retailer 17
-
£561 GBP
$747 USD
View
B+
Retailer 18
-
£580 GBP
A$1,188 AUD
View
B+
Retailer 19
-
£602 GBP
$801 USD
View
B+
Retailer 20
-
£820 GBP
View
B
Retailer 21
-
£866 GBP
$1,153 USD
View
Most Expensive
B
Brilliant Earth
18205966A · Oct 28
£991 GBP
$1,320 USD
View
21 more retailers have this diamond
Prices start from £140 GBPSave up to £851 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 Round
£140 GBP