Radiant|Lab Grown|IGI

1.29ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG800679998

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

Certificate IGI LG800679998

Diamond specifications and retailer prices

From $538 USD
HK$4,200 HKD
As of November 1, 2026
Save $2,812 USD (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,350 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.29ct lab-grown radiant diamond

This 1.29ct 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 LG800679998 or 800679998. Listed at 11 retailers as of October 31, 2026, with prices from $538 to $3,350, a $2,812 spread on the same certified stone. Brilliant Earth lists it at $3,350. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800679998
Dimensions7.95 × 5.46 × 3.46 mm
L/W Ratio1.46
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
7.95 mm5.46 mm1.29 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800679998
Side View
Table 62.0%Crown 39°Girdle: MED-STKPavilion 33°Culet: NoneDepth 63.4%

Caratlytics Score

How it works →
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: Nov 1
Current: $3,350 USD|Low: $538 USD|High: $3,350 USD|Avg: $1,298 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$538 USD
Retailer 10$662 USD
Retailer 6$705 USD
Retailer 5$756 USD
Retailer 2$848 USD
Retailer 8$904 USD
Retailer 7$1,078 USD
Retailer 9$1,545 USD
Retailer 11$1,809 USD
Retailer 4$1,831 USD
Brilliant Earth$3,350 USD

44 data points across 11 retailers

11 retailers$538 USD to $3,350 USD

A
Cheapest Retailer
-
$538 USD
HK$4,200 HKD
A
Retailer 2
-
$662 USD
View
A
Retailer 3
-
$705 USD
View
A
Retailer 4
-
$756 USD
€720 EUR
View
B+
Retailer 5
-
$848 USD
£668 GBP
View
A
Retailer 6
-
$904 USD
View
B+
Retailer 7
-
$1,078 USD
View
B+
Retailer 8
-
$1,545 USD
View
B+
Retailer 9
-
$1,809 USD
View
B+
Retailer 10
-
$1,831 USD
£1,442 GBP
View
Most Expensive
B
Brilliant Earth
21143984A · Oct 31
$3,350 USD
View
10 more retailers have this diamond
Prices start from $538 USDSave up to $2,812 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
1.29ct Radiant
$538 USD