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Round|Lab Grown|IGI

1.04ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG800684285

Shape and cutting style on the report: Round brilliant

Certificate IGI LG800684285

Diamond specifications and retailer prices

From £151 GBP
$201 USD
As of October 29, 2026
Save £895 GBP (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,046 GBP at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.04ct lab-grown round diamond

This 1.04ct 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 LG800684285 or 800684285. Listed at 18 retailers as of October 28, 2026, with prices from £151 to £1,046, a £895 spread on the same certified stone. Brilliant Earth lists it at £1,046. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.04
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800684285
Dimensions6.54 × 6.49 × 4.02 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
6.54 mm6.49 mm1.04 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800684285
Side View
Table 56.0%Crown 35.5°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.8%

Caratlytics Score

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A+
Exceptional
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: £1,046 GBP|Low: £129 GBP|High: £1,084 GBP|Avg: £494 GBP|-3.5%
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
October 29, 2026
Retailer 8£151 GBP
Retailer 4£169 GBP
Retailer 12£187 GBP
Retailer 2£313 GBP
Retailer 10£322 GBP
Retailer 5£326 GBP
Retailer 9£341 GBP
Retailer 15£367 GBP
Retailer 14£402 GBP
Retailer 11£458 GBP
Retailer 7£498 GBP
Retailer 16£635 GBP
Retailer 3£642 GBP
Retailer 13£877 GBP
Retailer 6£900 GBP
Brilliant Earth£1,046 GBP

34 data points across 16 retailers

18 retailers£151 GBP to £1,046 GBP

A+
Cheapest Retailer
-
£151 GBP
$201 USD
A
Retailer 2
-
£169 GBP
$224 USD
View
Final sale: no returns
A
Retailer 3
-
£187 GBP
$249 USD
View
A
Retailer 4
-
£199 GBP
$265 USD
View
Price last confirmed 44 days ago
A
Retailer 5
-
£313 GBP
€396 EUR
View
A
Retailer 6
-
£322 GBP
ZAR 6,905 ZAR
View
A
Retailer 7
-
£326 GBP
$433 USD
View
A
Retailer 8
-
£341 GBP
View
A
Retailer 9
-
£367 GBP
$487 USD
View
A
Retailer 10
-
£402 GBP
$534 USD
View
B+
Retailer 11
-
£458 GBP
A$936 AUD
View
B+
Retailer 12
-
£498 GBP
$662 USD
View
B+
Retailer 13
-
£592 GBP
$787 USD
View
Price last confirmed 44 days ago
B+
Retailer 14
-
£635 GBP
$844 USD
View
B+
Retailer 15
-
£642 GBP
$854 USD
View
B
Retailer 16
-
£877 GBP
View
B
Retailer 17
-
£900 GBP
$1,196 USD
View
Most Expensive
B
Brilliant Earth
20726329A · Oct 28
£1,046 GBP
$1,390 USD
View
17 more retailers have this diamond
Prices start from £151 GBPSave up to £895 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+
1.04ct Round
£151 GBP