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Round|Lab Grown|IGI

1.21ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG811638282

Shape and cutting style on the report: Round brilliant

Certificate IGI LG811638282

Diamond specifications and retailer prices

From €227 EUR
As of November 3, 2026
Save €1,353 EUR (86%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €1,580 EUR at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round 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 LG811638282 or 811638282. Listed at 20 retailers as of November 3, 2026, with prices from €227 to €1,580, a €1,353 spread on the same certified stone. Brilliant Earth lists it at €1,580. 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
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811638282
Dimensions6.87 × 6.82 × 4.19 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.87 mm6.82 mm1.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811638282
Side View
Table 58.0%Crown 35.4°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A+
Exceptional
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 3
Current: €1,580 EUR|Low: €227 EUR|High: €1,855 EUR|Avg: €704 EUR|-14.8%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 15€227 EUR
Retailer 18€255 EUR
Retailer 3€264 EUR
Retailer 4€282 EUR
Retailer 10€284 EUR
Retailer 7€426 EUR
Retailer 13€471 EUR
Retailer 5€473 EUR
Retailer 6€490 EUR
Retailer 2€532 EUR
Retailer 11€633 EUR
Retailer 16€867 EUR
Retailer 19€907 EUR
Retailer 9€923 EUR
Retailer 17€952 EUR
Retailer 8€1,006 EUR
Retailer 12€1,127 EUR
Retailer 14€1,274 EUR
Brilliant Earth€1,580 EUR

30 data points across 19 retailers

20 retailers€227 EUR to €1,580 EUR

A+
Cheapest Retailer
-
€227 EUR
A
Retailer 2
-
€255 EUR
View
Final sale: no returns
A
Retailer 3
-
€264 EUR
View
A
Retailer 4
-
€282 EUR
View
Retailer 5
-
€284 EUR
View
Price last confirmed 11 days ago
Retailer 6
-
€289 EUR
View
Price last confirmed 59 days ago
A
Retailer 7
-
€426 EUR
View
A
Retailer 8
-
€471 EUR
View
A
Retailer 9
-
€473 EUR
View
A
Retailer 10
-
€490 EUR
View
A
Retailer 11
-
€532 EUR
View
B+
Retailer 12
-
€633 EUR
View
B+
Retailer 13
-
€867 EUR
View
B+
Retailer 14
-
€907 EUR
View
B+
Retailer 15
-
€923 EUR
View
B+
Retailer 16
-
€952 EUR
View
B+
Retailer 17
-
€1,006 EUR
View
B+
Retailer 18
-
€1,127 EUR
View
B+
Retailer 19
-
€1,274 EUR
View
Most Expensive
B
Brilliant Earth
21422798A · Nov 4
€1,580 EUR
$1,780 USD
View
19 more retailers have this diamond
Prices start from €227 EURSave up to €1,353 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 Round
€227 EUR