Radiant|Lab Grown|IGI

1.30ct D FL Radiant Lab Grown Diamond

VG • D/FL • IGI LG831604041

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

Certificate IGI LG831604041

Diamond specifications and retailer prices

From $422 USD
HK$3,300 HKD
As of November 1, 2026
Save $3,028 USD (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,450 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.3ct lab-grown radiant diamond

This 1.3ct 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 very-good cut grade and certified by IGI LG831604041 or 831604041. Listed at 14 retailers as of October 31, 2026, with prices from $422 to $3,450, a $3,028 spread on the same certified stone. Brilliant Earth lists it at $3,450. 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

1.30
Carat
D
Color
FL
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle32.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831604041
Dimensions7.91 × 5.62 × 3.54 mm
L/W Ratio1.41
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
7.91 mm5.62 mm1.30 ctD / FL
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831604041
Side View
Table 63.0%Crown 37.4°Girdle: Slightly ThickPavilion 32.9°Culet: NoneDepth 63.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $3,450 USD|Low: $422 USD|High: $3,990 USD|Avg: $1,304 USD|-13.5%
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
Retailer 14
November 2, 2026
Retailer 8$422 USD
Retailer 3$503 USD
Retailer 11$528 USD
Retailer 5$737 USD
Retailer 7$802 USD
Retailer 12$827 USD
Retailer 14$865 USD
Retailer 4$926 USD
Retailer 2$955 USD
Retailer 9$1,233 USD
Retailer 10$1,383 USD
Retailer 6$1,653 USD
Retailer 13$1,976 USD
Brilliant Earth$3,450 USD

32 data points across 14 retailers

14 retailers$422 USD to $3,450 USD

A
Cheapest Retailer
-
$422 USD
HK$3,300 HKD
Retailer 2
-
$503 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$528 USD
View
B+
Retailer 4
-
$737 USD
View
B+
Retailer 5
-
$802 USD
€764 EUR
View
B+
Retailer 6
-
$827 USD
£651 GBP
View
B+
Retailer 7
-
$865 USD
ZAR 13,969 ZAR
View
B+
Retailer 8
-
$926 USD
View
B+
Retailer 9
-
$955 USD
View
B
Retailer 10
-
$1,233 USD
SGD 1,666 SGD
View
B
Retailer 11
-
$1,383 USD
View
B
Retailer 12
-
$1,653 USD
View
B
Retailer 13
-
$1,976 USD
£1,556 GBP
View
Most Expensive
B
Brilliant Earth
21605029A · Oct 31
$3,450 USD
View
13 more retailers have this diamond
Prices start from $422 USDSave up to $3,028 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
1.30ct Radiant
$422 USD