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Round|Lab Grown|IGI

1.48ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG816615011

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816615011

Diamond specifications and retailer prices

From £231 GBP
$310 USD
As of October 29, 2026
Save £1,455 GBP (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,687 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.48ct lab-grown round diamond

This 1.48ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615011 or 816615011. Listed at 19 retailers as of October 29, 2026, with prices from £231 to £1,687, a £1,455 spread on the same certified stone. Brilliant Earth lists it at £1,687. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.48
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615011
Dimensions7.36 × 7.29 × 4.49 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
7.36 mm7.29 mm1.48 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615011
Side View
Table 58.0%Crown 35.9°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.4%

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: £1,687 GBP|Low: £229 GBP|High: £1,851 GBP|Avg: £705 GBP|-8.9%
Brilliant Earth
Retailer 2
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Retailer 11
Retailer 12
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Retailer 19
October 31, 2026
Retailer 7£231 GBP
Retailer 8£258 GBP
Retailer 3£268 GBP
Retailer 5£287 GBP
Retailer 9£287 GBP
Retailer 15£403 GBP
Retailer 4£467 GBP
Retailer 2£468 GBP
Retailer 14£492 GBP
Retailer 12£508 GBP
Retailer 6£771 GBP
Retailer 19£880 GBP
Retailer 10£921 GBP
Retailer 17£925 GBP
Retailer 11£955 GBP
Retailer 16£1,035 GBP
Retailer 13£1,154 GBP
Retailer 18£1,534 GBP
Brilliant Earth£1,687 GBP

36 data points across 19 retailers

19 retailers£231 GBP to £1,687 GBP

A+
Cheapest Retailer
-
£231 GBP
$310 USD
A
Retailer 2
-
£258 GBP
$346 USD
View
Final sale: no returns
A
Retailer 3
-
£268 GBP
$359 USD
View
A
Retailer 4
-
£287 GBP
$384 USD
View
A
Retailer 5
-
£287 GBP
$384 USD
View
A
Retailer 6
-
£403 GBP
$540 USD
View
A
Retailer 7
-
£467 GBP
$626 USD
View
A
Retailer 8
-
£468 GBP
€597 EUR
View
A
Retailer 9
-
£492 GBP
ZAR 10,653 ZAR
View
A
Retailer 10
-
£508 GBP
View
B+
Retailer 11
-
£771 GBP
$1,033 USD
View
B+
Retailer 12
-
£880 GBP
$1,179 USD
View
B+
Retailer 13
-
£921 GBP
$1,234 USD
View
B+
Retailer 14
-
£925 GBP
SGD 1,674 SGD
View
B+
Retailer 15
-
£955 GBP
$1,280 USD
View
B+
Retailer 16
-
£1,035 GBP
$1,387 USD
View
B+
Retailer 17
-
£1,154 GBP
View
Retailer 18
-
£1,534 GBP
$2,055 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
21421152A · Oct 30
£1,687 GBP
$2,260 USD
View
18 more retailers have this diamond
Prices start from £231 GBPSave up to £1,455 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+
1.48ct Round
£231 GBP