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Radiant|Lab Grown|IGI

1.21ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG768628950

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

Certificate IGI LG768628950

Diamond specifications and retailer prices

From €527 EUR
HK$4,600 HKD
As of November 1, 2026
Save €1,675 EUR (76%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,202 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG768628950 or 768628950. Listed at 13 retailers as of October 31, 2026, with prices from €527 to €2,202, a €1,675 spread on the same certified stone. Brilliant Earth lists it at €2,202. 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 angle42.4°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768628950
Dimensions7.66 × 5.38 × 3.45 mm
L/W Ratio1.42
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
7.66 mm5.38 mm1.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768628950
Side View
Table 63.0%Crown 42.4°Girdle: MED-STKPavilion 34.1°Culet: NoneDepth 64.1%

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: Nov 1
Current: €2,202 EUR|Low: €512 EUR|High: €2,873 EUR|Avg: €1,148 EUR|-23.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 5€527 EUR
Retailer 13€552 EUR
Retailer 4€559 EUR
Retailer 11€578 EUR
Retailer 6€641 EUR
Retailer 7€680 EUR
Retailer 2€712 EUR
Retailer 12€905 EUR
Retailer 3€1,413 EUR
Retailer 9€1,547 EUR
Retailer 8€1,833 EUR
Retailer 10€2,095 EUR
Brilliant Earth€2,202 EUR

43 data points across 13 retailers

13 retailers€527 EUR to €2,202 EUR

A
Cheapest Retailer
-
€527 EUR
HK$4,600 HKD
A
Retailer 2
-
€552 EUR
$617 USD
View
A
Retailer 3
-
€559 EUR
$625 USD
View
A
Retailer 4
-
€578 EUR
$646 USD
View
A
Retailer 5
-
€641 EUR
View
B+
Retailer 6
-
€680 EUR
ZAR 12,266 ZAR
View
B+
Retailer 7
-
€712 EUR
£626 GBP
View
B+
Retailer 8
-
€905 EUR
$1,012 USD
View
B+
Retailer 9
-
€1,413 EUR
$1,578 USD
View
Retailer 10
-
€1,547 EUR
£1,361 GBP
View
Price last confirmed 7 days ago
B
Retailer 11
-
€1,833 EUR
$2,048 USD
View
Retailer 12
-
€2,095 EUR
$2,340 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
19647211Y · Oct 31
€2,202 EUR
$2,460 USD
View
12 more retailers have this diamond
Prices start from €527 EURSave up to €1,675 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
€527 EUR