Radiant|Lab Grown|IGI

1.18ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG800677718

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

Certificate IGI LG800677718

Diamond specifications and retailer prices

From $390 USD
As of October 30, 2026
Save $2,090 USD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,500 USD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.18ct lab-grown radiant diamond

This 1.18ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG800677718 or 800677718. Listed at 14 retailers as of October 30, 2026, with a 536% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.18
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800677718
Dimensions7.71 × 5.28 × 3.45 mm
L/W Ratio1.46
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
7.71 mm5.28 mm1.18 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800677718
Side View
Table 62.0%Crown 38.1°Girdle: Slightly ThickPavilion 33.4°Culet: NoneDepth 65.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $2,500 USD|Low: $390 USD|High: $3,130 USD|Avg: $1,254 USD|+10.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 3$390 USD
Retailer 7$504 USD
Retailer 11$510 USD
Retailer 10$573 USD
Retailer 12$596 USD
Retailer 2$653 USD
Retailer 4$861 USD
Retailer 9$1,065 USD
Retailer 6$1,542 USD
Retailer 5$2,210 USD
Retailer 8$2,480 USD
Rare Carat$2,500 USD

25 data points across 12 retailers

14 retailers$390 USD to $2,480 USD

Retailer 1
-
$294 USD
Price last confirmed 20 days ago
Retailer 2
-
$341 USD
View
Price last confirmed 17 days ago
A
Retailer 3
-
$390 USD
View
Final sale: no returns
A
Retailer 4
-
$504 USD
View
A
Retailer 5
-
$510 USD
View
A
Retailer 6
-
$573 USD
View
A
Retailer 7
-
$596 USD
View
A
Retailer 8
-
$653 USD
€622 EUR
View
B+
Retailer 9
-
$1,065 USD
View
Retailer 10
-
$1,294 USD
View
Price last confirmed 21 days ago
B+
Retailer 11
-
$1,542 USD
£1,214 GBP
View
B
Retailer 12
-
$2,210 USD
View
B
Retailer 13
-
$2,480 USD
View
Most Expensive
Rare Carat
B24-49 · Oct 21
$2,500 USD
View
Price last confirmed 10 days ago
13 more retailers have this diamond
Prices start from $390 USDSave up to $2,090 USD

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
1.18ct Radiant
$390 USD