CaratHunter
Plans
Round|Lab Grown|IGI

1.03ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG804650012

Shape and cutting style on the report: Round brilliant

Certificate IGI LG804650012

Diamond specifications and retailer prices

From £168 GBP
$224 USD
As of October 29, 2026
Save £973 GBP (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,141 GBP at Brilliant Earth · As of October 29, 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 D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG804650012 or 804650012. Listed at 19 retailers as of October 29, 2026, with prices from £168 to £1,141, a £973 spread on the same certified stone. Brilliant Earth lists it at £1,141. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804650012
Dimensions6.50 × 6.47 × 3.97 mm
L/W Ratio1.00
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
6.50 mm6.47 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804650012
Side View
Table 59.0%Crown 34.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A+
Exceptional
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: £1,141 GBP|Low: £167 GBP|High: £1,141 GBP|Avg: £460 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
Retailer 19
October 30, 2026
Retailer 6£168 GBP
Retailer 7£188 GBP
Retailer 17£195 GBP
Retailer 9£209 GBP
Retailer 18£209 GBP
Retailer 14£333 GBP
Retailer 12£350 GBP
Retailer 3£355 GBP
Retailer 15£358 GBP
Retailer 4£384 GBP
Retailer 2£387 GBP
Retailer 5£400 GBP
Retailer 8£564 GBP
Retailer 11£671 GBP
Retailer 16£673 GBP
Retailer 19£710 GBP
Retailer 10£719 GBP
Retailer 13£840 GBP
Brilliant Earth£1,141 GBP

31 data points across 19 retailers

19 retailers£168 GBP to £1,141 GBP

A+
Cheapest Retailer
-
£168 GBP
$224 USD
A
Retailer 2
-
£188 GBP
$251 USD
View
Final sale: no returns
A
Retailer 3
-
£195 GBP
$260 USD
View
A
Retailer 4
-
£209 GBP
$278 USD
View
A
Retailer 5
-
£209 GBP
$278 USD
View
A
Retailer 6
-
£333 GBP
View
A
Retailer 7
-
£350 GBP
€444 EUR
View
A
Retailer 8
-
£355 GBP
$473 USD
View
A
Retailer 9
-
£358 GBP
ZAR 7,707 ZAR
View
A
Retailer 10
-
£384 GBP
$512 USD
View
A
Retailer 11
-
£387 GBP
View
A
Retailer 12
-
£400 GBP
$533 USD
View
B+
Retailer 13
-
£564 GBP
SGD 1,015 SGD
View
B+
Retailer 14
-
£671 GBP
$893 USD
View
B+
Retailer 15
-
£673 GBP
$896 USD
View
B+
Retailer 16
-
£710 GBP
$945 USD
View
B+
Retailer 17
-
£719 GBP
$958 USD
View
B+
Retailer 18
-
£840 GBP
View
Most Expensive
B
Brilliant Earth
21421023A · Oct 29
£1,141 GBP
$1,520 USD
View
18 more retailers have this diamond
Prices start from £168 GBPSave up to £973 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
£168 GBP