Radiant|Lab Grown|IGI

1.45ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG768629727

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

Certificate IGI LG768629727

Diamond specifications and retailer prices

From $781 USD
HK$6,100 HKD
As of October 30, 2026
Save $3,549 USD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,330 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 LG768629727 or 768629727. Listed at 12 retailers as of October 29, 2026, with prices from $781 to $4,330, a $3,549 spread on the same certified stone. Brilliant Earth lists it at $4,330. 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 angle39.8°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768629727
Dimensions8.02 × 5.80 × 3.68 mm
L/W Ratio1.38
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
8.02 mm5.80 mm1.45 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768629727
Side View
Table 63.0%Crown 39.8°Girdle: MED-STKPavilion 33.9°Culet: NoneDepth 63.4%

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: $4,330 USD|Low: $781 USD|High: $4,460 USD|Avg: $1,780 USD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 3$781 USD
Retailer 8$891 USD
Retailer 12$955 USD
Retailer 7$1,034 USD
Retailer 2$1,054 USD
Retailer 11$1,162 USD
Retailer 6$1,163 USD
Retailer 10$1,595 USD
Retailer 4$2,006 USD
Retailer 9$2,196 USD
Retailer 5$2,840 USD
Brilliant Earth$4,330 USD

42 data points across 12 retailers

12 retailers$781 USD to $4,330 USD

A
Cheapest Retailer
-
$781 USD
HK$6,100 HKD
A
Retailer 2
-
$891 USD
View
A
Retailer 3
-
$955 USD
View
B+
Retailer 4
-
$1,034 USD
€985 EUR
View
Price last confirmed 7 days ago
B+
Retailer 5
-
$1,054 USD
£830 GBP
View
B+
Retailer 6
-
$1,162 USD
View
B+
Retailer 7
-
$1,163 USD
ZAR 18,785 ZAR
View
B+
Retailer 8
-
$1,595 USD
View
B
Retailer 9
-
$2,006 USD
View
B
Retailer 10
-
$2,196 USD
View
B
Retailer 11
-
$2,840 USD
£2,236 GBP
View
Most Expensive
B
Brilliant Earth
18782442A · Oct 29
$4,330 USD
View
11 more retailers have this diamond
Prices start from $781 USDSave up to $3,549 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
$781 USD