Radiant|Lab Grown|IGI

1.26ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG818639804

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

Certificate IGI LG818639804

Diamond specifications and retailer prices

From $333 USD
£262 GBP
As of October 30, 2026
Save $1,927 USD (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $2,435 USD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.26ct lab-grown radiant diamond

This 1.26ct 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 LG818639804 or 818639804. Listed at 8 retailers as of October 30, 2026, with a 579% 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

1.26
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818639804
Dimensions7.74 × 5.33 × 3.55 mm
L/W Ratio1.45
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
7.74 mm5.33 mm1.26 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818639804
Side View
Table 64.0%Crown 42°Girdle: MediumPavilion 35°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
A+
Exceptional
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: $2,435 USD|Low: $267 USD|High: $3,240 USD|Avg: $1,121 USD|+5.4%
Rare Carat
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
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 5$267 USD
Retailer 9$301 USD
Retailer 10$333 USD
Retailer 14$493 USD
Retailer 4$676 USD
Retailer 6$757 USD
Retailer 3$776 USD
Retailer 17$822 USD
Retailer 7$870 USD
Retailer 16$910 USD
Retailer 13$942 USD
Retailer 15$1,088 USD
Retailer 11$1,299 USD
Retailer 8$1,546 USD
Retailer 2$1,980 USD
Retailer 12$2,260 USD
Rare Carat$2,435 USD

21 data points across 17 retailers

8 retailers$333 USD to $2,260 USD

A+
Cheapest Retailer
-
$333 USD
£262 GBP
A
Retailer 2
-
$493 USD
View
B+
Retailer 3
-
$942 USD
View
B+
Retailer 4
-
$1,088 USD
View
B+
Retailer 5
-
$1,299 USD
£1,023 GBP
View
B
Retailer 6
-
$1,980 USD
View
B
Retailer 7
-
$2,260 USD
View
Most Expensive
Rare Carat
PD-220450 · Oct 18
$2,435 USD
View
Price last confirmed 14 days ago
7 more retailers have this diamond
Prices start from $333 USDSave up to $1,927 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+
1.26ct Radiant
$333 USD