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 €186 EUR
$209 USD
As of October 30, 2026
Save €1,115 EUR (86%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: €1,302 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 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 27 retailers as of October 30, 2026, with prices from €186 to €1,302, a €1,115 spread on the same certified stone. Brilliant Earth lists it at €1,302. 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
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: Oct 30
Current: €1,302 EUR|Low: €186 EUR|High: €1,854 EUR|Avg: €627 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
Retailer 17
Retailer 18
November 1, 2026
Retailer 18€186 EUR
Retailer 5€212 EUR
Retailer 4€274 EUR
Retailer 3€328 EUR
Retailer 15€392 EUR
Retailer 13€398 EUR
Retailer 11€427 EUR
Retailer 6€448 EUR
Retailer 9€498 EUR
Retailer 14€566 EUR
Retailer 7€708 EUR
Retailer 17€747 EUR
Retailer 10€792 EUR
Retailer 8€819 EUR
Retailer 12€822 EUR
Retailer 2€928 EUR
Retailer 16€1,141 EUR
Brilliant Earth€1,302 EUR

42 data points across 18 retailers

27 retailers€186 EUR to €1,302 EUR

A
Cheapest Retailer
-
€186 EUR
$209 USD
Retailer 2
-
€186 EUR
$209 USD
View
Price last confirmed 25 days ago
Retailer 3
-
€186 EUR
$209 USD
View
Price last confirmed 33 days ago
A
Retailer 4
-
€212 EUR
$238 USD
View
Final sale: no returns
Retailer 5
-
€217 EUR
$243 USD
View
Price last confirmed 36 days ago
Retailer 6
-
€228 EUR
$256 USD
View
Price last confirmed 34 days ago
Retailer 7
-
€232 EUR
$260 USD
View
Price last confirmed 30 days ago
A
Retailer 8
-
€274 EUR
HK$2,400 HKD
View
A
Retailer 9
-
€328 EUR
$368 USD
View
A
Retailer 10
-
€392 EUR
View
A
Retailer 11
-
€398 EUR
ZAR 7,209 ZAR
View
A
Retailer 12
-
€427 EUR
£378 GBP
View
A
Retailer 13
-
€448 EUR
$503 USD
View
A
Retailer 14
-
€498 EUR
$559 USD
View
A
Retailer 15
-
€566 EUR
A$977 AUD
View
B+
Retailer 16
-
€708 EUR
$794 USD
View
B+
Retailer 17
-
€744 EUR
$835 USD
View
Retailer 18
-
€744 EUR
$835 USD
View
Price last confirmed 23 days ago
Retailer 19
-
€744 EUR
$835 USD
View
Price last confirmed 33 days ago
B+
Retailer 20
-
€747 EUR
$838 USD
View
B+
Retailer 21
-
€788 EUR
SGD 1,194 SGD
View
B+
Retailer 22
-
€792 EUR
$888 USD
View
B+
Retailer 23
-
€822 EUR
A$1,419 AUD
View
B+
Retailer 24
-
€836 EUR
$938 USD
View
B+
Retailer 25
-
€928 EUR
£820 GBP
View
Retailer 26
-
€1,141 EUR
$1,280 USD
View
Price last confirmed 12 days ago
Most Expensive
B
Brilliant Earth
9670732A · Oct 31
€1,302 EUR
$1,460 USD
View
26 more retailers have this diamond
Prices start from €186 EURSave up to €1,115 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
€186 EUR