CaratHunter
Plans
Radiant|Lab Grown|IGI

1.21ct F IF Radiant Lab Grown Diamond

ID • F/IF • IGI LG626470487

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

Certificate IGI LG626470487

Diamond specifications and retailer prices

From €187 EUR
As of November 4, 2026
Save €1,120 EUR (86%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: €1,308 EUR at Brilliant Earth · As of November 6, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG626470487 or 626470487. Listed at 28 retailers as of November 6, 2026, with prices from €187 to €1,308, a €1,120 spread on the same certified stone. Brilliant Earth lists it at €1,308. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626470487
Dimensions7.90 × 5.34 × 3.49 mm
L/W Ratio1.48
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
7.90 mm5.34 mm1.21 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626470487
Side View
Table 64.0%Crown 44.4°Girdle: THN-MEDPavilion 34.4°Culet: NoneDepth 65.4%

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 4
Current: €1,308 EUR|Low: €187 EUR|High: €1,863 EUR|Avg: €628 EUR|-29.8%
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
November 7, 2026
Retailer 16€187 EUR
Retailer 5€213 EUR
Retailer 4€275 EUR
Retailer 3€330 EUR
Retailer 10€393 EUR
Retailer 9€394 EUR
Retailer 2€424 EUR
Retailer 6€451 EUR
Retailer 11€569 EUR
Retailer 7€711 EUR
Retailer 15€751 EUR
Retailer 8€823 EUR
Retailer 13€826 EUR
Retailer 12€932 EUR
Retailer 14€1,146 EUR
Brilliant Earth€1,308 EUR

44 data points across 16 retailers

28 retailers€187 EUR to €1,308 EUR

A
Cheapest Retailer
-
€187 EUR
Retailer 2
-
€187 EUR
View
Price last confirmed 30 days ago
Retailer 3
-
€187 EUR
View
Price last confirmed 38 days ago
A
Retailer 4
-
€187 EUR
View
Retailer 5
-
€218 EUR
View
Price last confirmed 41 days ago
Retailer 6
-
€229 EUR
View
Price last confirmed 39 days ago
Retailer 7
-
€233 EUR
View
Price last confirmed 35 days ago
A
Retailer 8
-
€275 EUR
View
A
Retailer 9
-
€330 EUR
View
A
Retailer 10
-
€393 EUR
View
A
Retailer 11
-
€394 EUR
View
A
Retailer 12
-
€424 EUR
View
A
Retailer 13
-
€451 EUR
View
A
Retailer 14
-
€501 EUR
View
A
Retailer 15
-
€569 EUR
View
B+
Retailer 16
-
€711 EUR
View
B+
Retailer 17
-
€748 EUR
View
Retailer 18
-
€748 EUR
View
Price last confirmed 28 days ago
Retailer 19
-
€748 EUR
View
Price last confirmed 38 days ago
B+
Retailer 20
-
€748 EUR
View
B+
Retailer 21
-
€751 EUR
View
B+
Retailer 22
-
€791 EUR
View
B+
Retailer 23
-
€795 EUR
View
Retailer 24
-
€826 EUR
View
Price last confirmed 9 days ago
B+
Retailer 25
-
€840 EUR
View
B+
Retailer 26
-
€932 EUR
View
Retailer 27
-
€1,146 EUR
View
Price last confirmed 17 days ago
Most Expensive
B
Brilliant Earth
9670732A · Nov 6
€1,308 EUR
$1,460 USD
View
27 more retailers have this diamond
Prices start from €187 EURSave up to €1,120 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
€187 EUR