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Radiant|Lab Grown|IGI

1.21ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG743538298

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

Certificate IGI LG743538298

Diamond specifications and retailer prices

From €208 EUR
As of November 4, 2026
Save €1,470 EUR (88%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: €1,677 EUR at Brilliant Earth · As of November 4, 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG743538298 or 743538298. Listed at 29 retailers as of November 4, 2026, with prices from €208 to €1,677, a €1,470 spread on the same certified stone. Brilliant Earth lists it at €1,677. 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
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle32.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743538298
Dimensions7.89 × 5.27 × 3.40 mm
L/W Ratio1.50
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
7.89 mm5.27 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743538298
Side View
Table 62.0%Crown 41.1°Girdle: MediumPavilion 32.6°Culet: NoneDepth 64.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: €1,677 EUR|Low: €208 EUR|High: €2,121 EUR|Avg: €734 EUR|-20.9%
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
November 5, 2026
Retailer 14€208 EUR
Retailer 11€231 EUR
Retailer 4€364 EUR
Retailer 10€431 EUR
Retailer 9€444 EUR
Retailer 5€470 EUR
Retailer 2€480 EUR
Retailer 8€629 EUR
Retailer 6€677 EUR
Retailer 13€830 EUR
Retailer 7€1,028 EUR
Retailer 3€1,053 EUR
Retailer 12€1,646 EUR
Brilliant Earth€1,677 EUR

44 data points across 14 retailers

29 retailers€208 EUR to €1,677 EUR

A
Cheapest Retailer
-
€208 EUR
Retailer 2
-
€208 EUR
View
Price last confirmed 28 days ago
Retailer 3
-
€208 EUR
View
Price last confirmed 36 days ago
A
Retailer 4
-
€231 EUR
View
Final sale: no returns
Retailer 5
-
€241 EUR
View
Price last confirmed 39 days ago
Retailer 6
-
€254 EUR
View
Price last confirmed 39 days ago
Retailer 7
-
€254 EUR
View
Price last confirmed 36 days ago
Retailer 8
-
€257 EUR
View
Price last confirmed 33 days ago
A
Retailer 9
-
€306 EUR
View
A
Retailer 10
-
€364 EUR
View
A
Retailer 11
-
€431 EUR
View
A
Retailer 12
-
€444 EUR
View
A
Retailer 13
-
€470 EUR
View
A
Retailer 14
-
€480 EUR
View
A
Retailer 15
-
€562 EUR
View
A
Retailer 16
-
€629 EUR
View
B+
Retailer 17
-
€677 EUR
View
B+
Retailer 18
-
€826 EUR
View
Retailer 19
-
€826 EUR
View
Price last confirmed 36 days ago
Retailer 20
-
€826 EUR
View
Price last confirmed 26 days ago
B+
Retailer 21
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€830 EUR
View
B+
Retailer 22
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€872 EUR
View
B+
Retailer 23
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€872 EUR
View
B+
Retailer 24
-
€943 EUR
View
B+
Retailer 25
-
€1,028 EUR
View
Retailer 26
-
€1,053 EUR
View
Price last confirmed 28 days ago
B
Retailer 27
-
€1,154 EUR
View
Retailer 28
-
€1,646 EUR
View
Price last confirmed 18 days ago
Most Expensive
B
Brilliant Earth
16656546A · Nov 4
€1,677 EUR
$1,890 USD
View
28 more retailers have this diamond
Prices start from €208 EURSave up to €1,470 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
€208 EUR