Radiant|Lab Grown|IGI

1.45ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG836619997

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

Certificate IGI LG836619997

Diamond specifications and retailer prices

From $309 USD
As of October 30, 2026
Save $4,001 USD (93%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,310 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.45ct lab-grown radiant diamond

This 1.45ct 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 LG836619997 or 836619997. Listed at 19 retailers as of October 29, 2026, with prices from $309 to $4,310, a $4,001 spread on the same certified stone. Brilliant Earth lists it at $4,310. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40°
Pavilion angle38°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836619997
Dimensions7.73 × 5.70 × 3.91 mm
L/W Ratio1.36
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
7.73 mm5.70 mm1.45 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836619997
Side View
Table 68.0%Crown 40°Girdle: MED-STKPavilion 38°Culet: NoneDepth 68.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,310 USD|Low: $309 USD|High: $4,450 USD|Avg: $1,182 USD|-3.1%
Brilliant Earth
Retailer 2
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 19
October 30, 2026
Retailer 6$309 USD
Retailer 16$358 USD
Retailer 10$370 USD
Retailer 5$383 USD
Retailer 15$383 USD
Retailer 14$540 USD
Retailer 17$624 USD
Retailer 13$658 USD
Retailer 2$680 USD
Retailer 8$709 USD
Retailer 19$1,080 USD
Retailer 18$1,177 USD
Retailer 9$1,204 USD
Retailer 4$1,231 USD
Retailer 3$1,278 USD
Retailer 11$1,413 USD
Retailer 12$1,543 USD
Retailer 7$3,230 USD
Brilliant Earth$4,310 USD

36 data points across 19 retailers

19 retailers$309 USD to $4,310 USD

A
Cheapest Retailer
-
$309 USD
A
Retailer 2
-
$358 USD
View
A
Retailer 3
-
$370 USD
View
Final sale: no returns
A
Retailer 4
-
$383 USD
View
A
Retailer 5
-
$383 USD
View
A
Retailer 6
-
$540 USD
View
A
Retailer 7
-
$624 USD
View
A
Retailer 8
-
$658 USD
ZAR 10,634 ZAR
View
A
Retailer 9
-
$680 USD
£536 GBP
View
A
Retailer 10
-
$709 USD
€675 EUR
View
B+
Retailer 11
-
$1,080 USD
View
B+
Retailer 12
-
$1,177 USD
View
B+
Retailer 13
-
$1,204 USD
View
B+
Retailer 14
-
$1,231 USD
View
B+
Retailer 15
-
$1,278 USD
View
B+
Retailer 16
-
$1,413 USD
SGD 1,909 SGD
View
B+
Retailer 17
-
$1,543 USD
£1,215 GBP
View
Retailer 18
-
$3,230 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21589466A · Oct 29
$4,310 USD
View
18 more retailers have this diamond
Prices start from $309 USDSave up to $4,001 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
1.45ct Radiant
$309 USD