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Round|Lab Grown|IGI

1.03ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG813675062

Shape and cutting style on the report: Round brilliant

Certificate IGI LG813675062

Diamond specifications and retailer prices

From £228 GBP
$306 USD
As of October 29, 2026
Save £1,115 GBP (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,343 GBP at Brilliant Earth · As of October 30, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813675062 or 813675062. Listed at 25 retailers as of October 29, 2026, with prices from £228 to £1,343, a £1,115 spread on the same certified stone. Brilliant Earth lists it at £1,343. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813675062
Dimensions6.54 × 6.51 × 3.95 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.54 mm6.51 mm1.03 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813675062
Side View
Table 57.0%Crown 33.5°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.6%

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: £1,343 GBP|Low: £255 GBP|High: £1,567 GBP|Avg: £655 GBP|-14.3%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 12
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Retailer 20
October 30, 2026
Retailer 13£257 GBP
Retailer 5£264 GBP
Retailer 20£283 GBP
Retailer 3£315 GBP
Retailer 8£381 GBP
Retailer 19£399 GBP
Retailer 4£419 GBP
Retailer 16£455 GBP
Retailer 18£486 GBP
Retailer 2£501 GBP
Retailer 6£517 GBP
Retailer 12£528 GBP
Retailer 17£690 GBP
Retailer 7£731 GBP
Retailer 15£747 GBP
Retailer 10£756 GBP
Retailer 11£944 GBP
Retailer 14£1,139 GBP
Retailer 9£1,142 GBP
Brilliant Earth£1,343 GBP

35 data points across 20 retailers

25 retailers£228 GBP to £1,343 GBP

A
Cheapest Retailer
-
£228 GBP
$306 USD
A
Retailer 2
-
£257 GBP
$344 USD
View
Final sale: no returns
A
Retailer 3
-
£264 GBP
$354 USD
View
A
Retailer 4
-
£283 GBP
$379 USD
View
A
Retailer 5
-
£283 GBP
$379 USD
View
A
Retailer 6
-
£315 GBP
HK$3,300 HKD
View
A
Retailer 7
-
£381 GBP
$510 USD
View
A
Retailer 8
-
£399 GBP
$535 USD
View
B+
Retailer 9
-
£419 GBP
$562 USD
View
B+
Retailer 10
-
£455 GBP
€581 EUR
View
B+
Retailer 11
-
£486 GBP
ZAR 10,518 ZAR
View
B+
Retailer 12
-
£501 GBP
View
B+
Retailer 13
-
£517 GBP
$693 USD
View
B+
Retailer 14
-
£528 GBP
A$1,088 AUD
View
B+
Retailer 15
-
£690 GBP
A$1,422 AUD
View
Retailer 16
-
£726 GBP
$973 USD
View
Price last confirmed 14 days ago
B
Retailer 17
-
£731 GBP
$979 USD
View
B+
Retailer 18
-
£747 GBP
A$1,540 AUD
View
B
Retailer 19
-
£756 GBP
SGD 1,368 SGD
View
B
Retailer 20
-
£909 GBP
$1,218 USD
View
B
Retailer 21
-
£944 GBP
$1,265 USD
View
B
Retailer 22
-
£1,139 GBP
View
B
Retailer 23
-
£1,142 GBP
$1,530 USD
View
B
Retailer 24
-
£1,308 GBP
View
Most Expensive
B
Brilliant Earth
20729079A · Oct 30
£1,343 GBP
$1,800 USD
View
24 more retailers have this diamond
Prices start from £228 GBPSave up to £1,115 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
£228 GBP