CaratHunter
Plans
Round|Lab Grown|IGI

1.21ct F FL Round Lab Grown Diamond

ID • F/FL • IGI LG825659842

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825659842

Diamond specifications and retailer prices

From €255 EUR
$285 USD
As of October 30, 2026
Save €1,240 EUR (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,495 EUR at Brilliant Earth · As of October 30, 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 F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825659842 or 825659842. Listed at 17 retailers as of October 30, 2026, with prices from €255 to €1,495, a €1,240 spread on the same certified stone. Brilliant Earth lists it at €1,495. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825659842
Dimensions6.82 × 6.78 × 4.25 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
6.82 mm6.78 mm1.21 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825659842
Side View
Table 57.0%Crown 35.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: Oct 30
Current: €1,495 EUR|Low: €255 EUR|High: €2,139 EUR|Avg: €696 EUR|-30.1%
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
October 31, 2026
Retailer 8€255 EUR
Retailer 17€264 EUR
Retailer 3€283 EUR
Retailer 12€425 EUR
Retailer 2€467 EUR
Retailer 4€473 EUR
Retailer 11€485 EUR
Retailer 6€508 EUR
Retailer 10€537 EUR
Retailer 7€576 EUR
Retailer 16€868 EUR
Retailer 15€911 EUR
Retailer 9€954 EUR
Retailer 14€991 EUR
Retailer 5€1,146 EUR
Retailer 13€1,352 EUR
Brilliant Earth€1,495 EUR

40 data points across 17 retailers

17 retailers€255 EUR to €1,495 EUR

A
Cheapest Retailer
-
€255 EUR
$285 USD
Final sale: no returns
A
Retailer 2
-
€264 EUR
$295 USD
View
A
Retailer 3
-
€283 EUR
$316 USD
View
A
Retailer 4
-
€425 EUR
$475 USD
View
A
Retailer 5
-
€467 EUR
View
A
Retailer 6
-
€473 EUR
$528 USD
View
A
Retailer 7
-
€485 EUR
ZAR 8,760 ZAR
View
B+
Retailer 8
-
€508 EUR
$567 USD
View
B+
Retailer 9
-
€537 EUR
£473 GBP
View
B+
Retailer 10
-
€576 EUR
$643 USD
View
B
Retailer 11
-
€868 EUR
$970 USD
View
B+
Retailer 12
-
€911 EUR
SGD 1,375 SGD
View
B
Retailer 13
-
€954 EUR
$1,066 USD
View
B+
Retailer 14
-
€991 EUR
$1,107 USD
View
Retailer 15
-
€1,146 EUR
£1,008 GBP
View
Price last confirmed 22 days ago
Retailer 16
-
€1,352 EUR
$1,510 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21418780A · Oct 30
€1,495 EUR
$1,670 USD
View
16 more retailers have this diamond
Prices start from €255 EURSave up to €1,240 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
€255 EUR