Radiant|Lab Grown|IGI

1.09ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG768631882

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

Certificate IGI LG768631882

Diamond specifications and retailer prices

From $322 USD
As of November 1, 2026
Save $1,678 USD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,290 USD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.09ct lab-grown radiant diamond

This 1.09ct 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 LG768631882 or 768631882. Listed at 15 retailers as of November 1, 2026, with a 521% 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

1.09
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768631882
Dimensions7.34 × 5.18 × 3.39 mm
L/W Ratio1.42
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
7.34 mm5.18 mm1.09 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768631882
Side View
Table 65.0%Crown 35.2°Girdle: Slightly ThickPavilion 34.3°Culet: NoneDepth 65.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $2,290 USD|Low: $322 USD|High: $2,890 USD|Avg: $1,109 USD|+9.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 4$322 USD
Retailer 7$407 USD
Retailer 10$446 USD
Retailer 5$498 USD
Retailer 12$506 USD
Retailer 3$510 USD
Retailer 9$834 USD
Retailer 11$875 USD
Retailer 2$1,143 USD
Retailer 6$1,600 USD
Retailer 8$2,000 USD
Rare Carat$2,290 USD

29 data points across 12 retailers

15 retailers$322 USD to $2,000 USD

Retailer 1
-
$218 USD
Price last confirmed 19 days ago
Retailer 2
-
$285 USD
View
Price last confirmed 32 days ago
A
Retailer 3
-
$322 USD
View
Final sale: no returns
Retailer 4
-
$330 USD
View
Price last confirmed 35 days ago
A
Retailer 5
-
$407 USD
View
A
Retailer 6
-
$446 USD
View
A
Retailer 7
-
$498 USD
€474 EUR
View
A
Retailer 8
-
$506 USD
View
B+
Retailer 9
-
$834 USD
View
B+
Retailer 10
-
$875 USD
View
B+
Retailer 11
-
$1,143 USD
£900 GBP
View
Retailer 12
-
$1,252 USD
View
Price last confirmed 32 days ago
B
Retailer 13
-
$1,600 USD
View
B
Retailer 14
-
$2,000 USD
View
Most Expensive
Rare Carat
611-2B · Oct 18
$2,290 USD
View
Price last confirmed 13 days ago
14 more retailers have this diamond
Prices start from $322 USDSave up to $1,678 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
1.09ct Radiant
$322 USD