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Radiant|Lab Grown|IGI

1.21ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG763641994

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

Certificate IGI LG763641994

Diamond specifications and retailer prices

From €338 EUR
$378 USD
As of November 1, 2026
Save €1,613 EUR (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,095 EUR at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.21ct lab-grown radiant diamond

This 1.21ct lab-grown radiant sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG763641994 or 763641994. Listed at 13 retailers as of October 31, 2026, with a 477% 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

1.21
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle36.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763641994
Dimensions7.33 × 5.47 × 3.58 mm
L/W Ratio1.34
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
7.33 mm5.47 mm1.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG763641994
Side View
Table 64.0%Crown 40.5°Girdle: Slightly ThickPavilion 36.7°Culet: NoneDepth 65.4%

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: €2,095 EUR|Low: €338 EUR|High: €2,873 EUR|Avg: €1,280 EUR|+6.2%
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
October 30, 2026
Retailer 15€338 EUR
Retailer 12€429 EUR
Retailer 9€467 EUR
Retailer 3€732 EUR
Retailer 11€814 EUR
Retailer 14€877 EUR
Retailer 5€938 EUR
Retailer 6€938 EUR
Retailer 13€946 EUR
Retailer 8€1,122 EUR
Retailer 2€1,701 EUR
Retailer 7€1,903 EUR
Retailer 10€1,951 EUR
Rare Carat€2,095 EUR
Retailer 4€2,324 EUR

27 data points across 15 retailers

13 retailers€338 EUR to €1,951 EUR

Retailer 1
-
€270 EUR
$302 USD
Price last confirmed 27 days ago
Retailer 2
-
€327 EUR
$365 USD
View
Price last confirmed 35 days ago
A
Retailer 3
-
€338 EUR
$378 USD
View
Final sale: no returns
A
Retailer 4
-
€429 EUR
$479 USD
View
A
Retailer 5
-
€467 EUR
$522 USD
View
B+
Retailer 6
-
€814 EUR
$909 USD
View
Retailer 7
-
€876 EUR
$979 USD
View
Price last confirmed 27 days ago
B+
Retailer 8
-
€946 EUR
$1,057 USD
View
B+
Retailer 9
-
€1,122 EUR
£987 GBP
View
Retailer 10
-
€1,241 EUR
$1,386 USD
View
Price last confirmed 28 days ago
B
Retailer 11
-
€1,701 EUR
$1,900 USD
View
B
Retailer 12
-
€1,951 EUR
$2,180 USD
View
Most Expensive
Rare Carat
VL-128528 · Oct 18
€2,095 EUR
$2,340 USD
View
Price last confirmed 14 days ago
12 more retailers have this diamond
Prices start from €338 EURSave up to €1,613 EUR

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
1.21ct Radiant
€338 EUR