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Round|Lab Grown|IGI

1.03ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG789612872

Shape and cutting style on the report: Round brilliant

Certificate IGI LG789612872

Diamond specifications and retailer prices

From £218 GBP
$290 USD
As of October 29, 2026
Save £1,723 GBP (89%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £1,942 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG789612872 or 789612872. Listed at 26 retailers as of October 29, 2026, with prices from £218 to £1,942, a £1,723 spread on the same certified stone. Do Amore Diamonds lists it at £1,942. 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 angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789612872
Dimensions6.48 × 6.53 × 3.98 mm
L/W Ratio1.01
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
6.48 mm6.53 mm1.03 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789612872
Side View
Table 59.0%Crown 34.9°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,746 GBP|Low: £174 GBP|High: £1,769 GBP|Avg: £756 GBP
Do Amore Diamonds
Retailer 2
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October 29, 2026
Retailer 8£245 GBP
Retailer 18£323 GBP
Retailer 16£324 GBP
Retailer 5£332 GBP
Retailer 17£403 GBP
Retailer 12£467 GBP
Retailer 15£485 GBP
Retailer 13£514 GBP
Retailer 3£527 GBP
Retailer 14£530 GBP
Retailer 4£641 GBP
Retailer 6£747 GBP
Retailer 9£881 GBP
Retailer 7£1,041 GBP
Retailer 11£1,083 GBP
Retailer 10£1,112 GBP
Retailer 2£1,204 GBP
Retailer 19£1,716 GBP
Do Amore Diamonds£1,746 GBP

29 data points across 19 retailers

26 retailers£218 GBP to £1,942 GBP

A
Cheapest Retailer
-
£218 GBP
$290 USD
A
Retailer 2
-
£245 GBP
$325 USD
View
Final sale: no returns
A
Retailer 3
-
£254 GBP
$337 USD
View
A
Retailer 4
-
£271 GBP
$360 USD
View
A
Retailer 5
-
£271 GBP
$360 USD
View
A
Retailer 6
-
£323 GBP
$429 USD
View
A
Retailer 7
-
£324 GBP
$430 USD
View
A
Retailer 8
-
£332 GBP
$441 USD
View
A
Retailer 9
-
£403 GBP
$535 USD
View
B+
Retailer 10
-
£467 GBP
€591 EUR
View
B+
Retailer 11
-
£485 GBP
$645 USD
View
B+
Retailer 12
-
£514 GBP
ZAR 11,027 ZAR
View
B+
Retailer 13
-
£527 GBP
A$1,078 AUD
View
B+
Retailer 14
-
£530 GBP
View
B+
Retailer 15
-
£641 GBP
$852 USD
View
B+
Retailer 16
-
£747 GBP
$993 USD
View
B
Retailer 17
-
£881 GBP
CA$1,627 CAD
View
B
Retailer 18
-
£961 GBP
$1,277 USD
View
B
Retailer 19
-
£1,041 GBP
$1,383 USD
View
B
Retailer 20
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£1,083 GBP
$1,439 USD
View
B
Retailer 21
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£1,083 GBP
$1,439 USD
View
B
Retailer 22
-
£1,112 GBP
$1,478 USD
View
B
Retailer 23
-
£1,204 GBP
View
B
Retailer 24
-
£1,716 GBP
$2,280 USD
View
B
Retailer 25
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£1,746 GBP
$2,320 USD
View
Most Expensive
B
Do Amore Diamonds
27-B6F1F043E · Oct 29
£1,942 GBP
$2,580 USD
View
25 more retailers have this diamond
Prices start from £218 GBPSave up to £1,723 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
£218 GBP