Radiant|Lab Grown|IGI

1.21ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG660492735

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

Certificate IGI LG660492735

Diamond specifications and retailer prices

From €190 EUR
$212 USD
As of October 30, 2026
Save €1,627 EUR (90%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: €1,817 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

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 LG660492735 or 660492735. Listed at 28 retailers as of October 30, 2026, with prices from €190 to €1,817, a €1,627 spread on the same certified stone. Do Amore Diamonds lists it at €1,817. 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
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG660492735
Dimensions7.69 × 5.26 × 3.42 mm
L/W Ratio1.46
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
7.69 mm5.26 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660492735
Side View
Table 64.0%Crown 43.4°Girdle: MED-STKPavilion 33.7°Culet: NoneDepth 65.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €448 EUR|Low: €190 EUR|High: €2,077 EUR|Avg: €725 EUR|+1.7%
Retailer 1
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 1, 2026
Retailer 2€190 EUR
Retailer 16€219 EUR
Retailer 4€367 EUR
Retailer 11€435 EUR
Retailer 1€448 EUR
Retailer 6€452 EUR
Retailer 10€485 EUR
Retailer 7€531 EUR
Retailer 8€567 EUR
Retailer 13€632 EUR
Retailer 15€758 EUR
Retailer 9€1,039 EUR
Retailer 5€1,062 EUR
Retailer 3€1,069 EUR
Retailer 12€1,575 EUR
Retailer 14€1,651 EUR

44 data points across 16 retailers

28 retailers€190 EUR to €1,817 EUR

A
Cheapest Retailer
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€190 EUR
$212 USD
Retailer 2
-
€190 EUR
$212 USD
View
Price last confirmed 24 days ago
Retailer 3
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€190 EUR
$212 USD
View
Price last confirmed 32 days ago
A
Retailer 4
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€219 EUR
$245 USD
View
Final sale: no returns
Retailer 5
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€220 EUR
$246 USD
View
Price last confirmed 35 days ago
Retailer 6
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€232 EUR
$259 USD
View
Price last confirmed 34 days ago
Retailer 7
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€235 EUR
$262 USD
View
Price last confirmed 29 days ago
A
Retailer 8
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€367 EUR
HK$3,200 HKD
View
A
Retailer 9
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€367 EUR
$410 USD
View
A
Retailer 10
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€435 EUR
View
A
Retailer 11
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€448 EUR
ZAR 8,081 ZAR
View
A
Retailer 12
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€452 EUR
$505 USD
View
A
Retailer 13
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€485 EUR
£427 GBP
View
A
Retailer 14
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€531 EUR
$593 USD
View
A
Retailer 15
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€567 EUR
$634 USD
View
A
Retailer 16
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€632 EUR
A$1,087 AUD
View
B+
Retailer 17
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€758 EUR
$847 USD
View
B+
Retailer 18
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€833 EUR
$931 USD
View
Retailer 19
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€833 EUR
$931 USD
View
Price last confirmed 22 days ago
Retailer 20
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€833 EUR
$931 USD
View
Price last confirmed 32 days ago
B+
Retailer 21
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€987 EUR
$1,103 USD
View
B+
Retailer 22
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€1,039 EUR
£914 GBP
View
B+
Retailer 23
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€1,062 EUR
SGD 1,603 SGD
View
Retailer 24
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€1,069 EUR
A$1,837 AUD
View
Price last confirmed 24 days ago
B
Retailer 25
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€1,102 EUR
$1,231 USD
View
B
Retailer 26
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€1,575 EUR
$1,760 USD
View
Retailer 27
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€1,651 EUR
$1,845 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Do Amore Diamonds
27-80DE62B69 · Oct 31
€1,817 EUR
$2,030 USD
View
27 more retailers have this diamond
Prices start from €190 EURSave up to €1,627 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
€190 EUR