CaratHunter
Plans
Radiant|Lab Grown|IGI

1.40ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG762545712

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

Certificate IGI LG762545712

Diamond specifications and retailer prices

From £615 GBP
HK$6,400 HKD
As of October 30, 2026
Save £2,494 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,109 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.4ct lab-grown radiant diamond

This 1.4ct lab-grown radiant 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 LG762545712 or 762545712. Listed at 13 retailers as of October 29, 2026, with prices from £615 to £3,109, a £2,494 spread on the same certified stone. Brilliant Earth lists it at £3,109. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.40
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762545712
Dimensions7.92 × 5.61 × 3.60 mm
L/W Ratio1.41
Culet sizePointed
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
7.92 mm5.61 mm1.40 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762545712
Side View
Table 64.0%Crown 39.9°Girdle: STK-THKPavilion 33.9°Culet: NoneDepth 64.2%

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: £3,109 GBP|Low: £615 GBP|High: £3,206 GBP|Avg: £1,424 GBP|-3.0%
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
October 30, 2026
Retailer 4£615 GBP
Retailer 10£618 GBP
Retailer 13£623 GBP
Retailer 3£695 GBP
Retailer 9£751 GBP
Retailer 2£762 GBP
Retailer 7£845 GBP
Retailer 12£1,156 GBP
Retailer 5£1,685 GBP
Retailer 11£1,984 GBP
Retailer 6£2,063 GBP
Retailer 8£2,332 GBP
Brilliant Earth£3,109 GBP

42 data points across 13 retailers

13 retailers£615 GBP to £3,109 GBP

A
Cheapest Retailer
-
£615 GBP
HK$6,400 HKD
A
Retailer 2
-
£618 GBP
$823 USD
View
A
Retailer 3
-
£623 GBP
$830 USD
View
A
Retailer 4
-
£695 GBP
$925 USD
View
B+
Retailer 5
-
£751 GBP
€953 EUR
View
B+
Retailer 6
-
£762 GBP
View
B+
Retailer 7
-
£845 GBP
ZAR 18,170 ZAR
View
B+
Retailer 8
-
£1,156 GBP
$1,540 USD
View
B
Retailer 9
-
£1,685 GBP
$2,244 USD
View
B
Retailer 10
-
£1,984 GBP
$2,642 USD
View
B
Retailer 11
-
£2,063 GBP
View
Retailer 12
-
£2,332 GBP
$3,105 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
19646879Y · Oct 29
£3,109 GBP
$4,140 USD
View
12 more retailers have this diamond
Prices start from £615 GBPSave up to £2,494 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
1.40ct Radiant
£615 GBP