CaratHunter
Plans
Radiant|Lab Grown|IGI

1.00ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG816615712

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

Certificate IGI LG816615712

Diamond specifications and retailer prices

From £191 GBP
$256 USD
As of October 30, 2026
Save £1,384 GBP (88%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,575 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816615712 or 816615712. Listed at 17 retailers as of October 28, 2026, with prices from £191 to £1,575, a £1,384 spread on the same certified stone. Rare Carat lists it at £1,575. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
D
Colour
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle27.8°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615712
Dimensions7.03 × 4.84 × 3.43 mm
L/W Ratio1.45
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
7.03 mm4.84 mm1.00 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615712
Side View
Table 61.0%Crown 27.8°Girdle: Slightly ThickPavilion 37.5°Culet: NoneDepth 70.9%

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: £1,575 GBP|Low: £191 GBP|High: £1,993 GBP|Avg: £718 GBP|-1.9%
Rare Carat
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
November 1, 2026
Retailer 3£191 GBP
Retailer 14£360 GBP
Retailer 10£364 GBP
Retailer 8£368 GBP
Retailer 7£393 GBP
Retailer 13£410 GBP
Retailer 6£418 GBP
Retailer 5£596 GBP
Retailer 11£683 GBP
Retailer 12£720 GBP
Retailer 4£771 GBP
Retailer 2£848 GBP
Retailer 9£1,314 GBP
Rare Carat£1,575 GBP

31 data points across 14 retailers

17 retailers£191 GBP to £1,575 GBP

A
Cheapest Retailer
-
£191 GBP
$256 USD
Final sale: no returns
Retailer 2
-
£211 GBP
$283 USD
View
Price last confirmed 30 days ago
Retailer 3
-
£255 GBP
$342 USD
View
Price last confirmed 34 days ago
Retailer 4
-
£273 GBP
$366 USD
View
Price last confirmed 29 days ago
A
Retailer 5
-
£360 GBP
$482 USD
View
A
Retailer 6
-
£364 GBP
ZAR 7,874 ZAR
View
A
Retailer 7
-
£368 GBP
€469 EUR
View
A
Retailer 8
-
£393 GBP
View
B+
Retailer 9
-
£410 GBP
$550 USD
View
B+
Retailer 10
-
£596 GBP
SGD 1,080 SGD
View
B
Retailer 11
-
£683 GBP
$915 USD
View
B
Retailer 12
-
£720 GBP
$964 USD
View
B
Retailer 13
-
£771 GBP
$1,033 USD
View
B
Retailer 14
-
£848 GBP
View
Retailer 15
-
£878 GBP
$1,177 USD
View
Price last confirmed 31 days ago
B
Retailer 16
-
£1,314 GBP
$1,760 USD
View
Most Expensive
B
Rare Carat
PD-229995 · Oct 28
£1,575 GBP
$2,110 USD
View
16 more retailers have this diamond
Prices start from £191 GBPSave up to £1,384 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
1.00ct Radiant
£191 GBP