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Radiant|Lab Grown|IGI

1.94ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG816623866

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG816623866

Diamond specifications and retailer prices

From £502 GBP
$672 USD
As of October 30, 2026
Save £3,514 GBP (88%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £4,015 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.94ct lab-grown radiant diamond

This 1.94ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816623866 or 816623866. Listed at 22 retailers as of October 30, 2026, with prices from £502 to £4,015, a £3,514 spread on the same certified stone. Brilliant Earth lists it at £4,015. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.94
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.6°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816623866
Dimensions8.98 × 5.96 × 4.18 mm
L/W Ratio1.51
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
8.98 mm5.96 mm1.94 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816623866
Side View
Table 62.0%Crown 44.6°Girdle: MediumPavilion 34.7°Culet: NoneDepth 70.1%

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 30
Current: £4,015 GBP|Low: £502 GBP|High: £4,635 GBP|Avg: £1,705 GBP|-13.4%
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 11
Retailer 12
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Retailer 20
October 30, 2026
Retailer 11£502 GBP
Retailer 19£546 GBP
Retailer 10£582 GBP
Retailer 16£586 GBP
Retailer 17£713 GBP
Retailer 13£929 GBP
Retailer 18£949 GBP
Retailer 3£993 GBP
Retailer 15£1,070 GBP
Retailer 5£1,281 GBP
Retailer 4£1,303 GBP
Retailer 8£1,636 GBP
Retailer 6£1,808 GBP
Retailer 7£2,007 GBP
Retailer 2£2,052 GBP
Retailer 9£2,114 GBP
Retailer 14£2,464 GBP
Retailer 20£2,985 GBP
Retailer 12£3,429 GBP
Brilliant Earth£4,015 GBP

27 data points across 20 retailers

22 retailers£502 GBP to £4,015 GBP

A
Cheapest Retailer
-
£502 GBP
$672 USD
A
Retailer 2
-
£546 GBP
$731 USD
View
A
Retailer 3
-
£582 GBP
$780 USD
View
A
Retailer 4
-
£586 GBP
$785 USD
View
Final sale: no returns
Retailer 5
-
£621 GBP
$832 USD
View
Price last confirmed 13 days ago
A
Retailer 6
-
£713 GBP
$955 USD
View
A
Retailer 7
-
£929 GBP
View
A
Retailer 8
-
£949 GBP
$1,271 USD
View
Retailer 9
-
£993 GBP
€1,267 EUR
View
Price last confirmed 7 days ago
B+
Retailer 10
-
£1,070 GBP
ZAR 23,154 ZAR
View
B+
Retailer 11
-
£1,281 GBP
$1,716 USD
View
B+
Retailer 12
-
£1,303 GBP
$1,746 USD
View
B+
Retailer 13
-
£1,636 GBP
$2,192 USD
View
B+
Retailer 14
-
£1,808 GBP
View
B+
Retailer 15
-
£1,917 GBP
$2,568 USD
View
B+
Retailer 16
-
£2,007 GBP
$2,690 USD
View
B+
Retailer 17
-
£2,052 GBP
$2,750 USD
View
B+
Retailer 18
-
£2,114 GBP
SGD 3,827 SGD
View
B+
Retailer 19
-
£2,464 GBP
View
B
Retailer 20
-
£2,985 GBP
$4,000 USD
View
Retailer 21
-
£3,429 GBP
$4,595 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21421344A · Oct 30
£4,015 GBP
$5,380 USD
View
21 more retailers have this diamond
Prices start from £502 GBPSave up to £3,514 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
1.94ct Radiant
£502 GBP