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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 $303 AUD
As of November 4, 2026
Save $2,597 AUD (90%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $2,900 AUD at Do Amore Diamonds · As of November 4, 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 26 retailers as of November 4, 2026, with prices from $303 to $2,900, a $2,597 spread on the same certified stone. Do Amore Diamonds lists it at $2,900. 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 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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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $339 AUD|Low: $303 AUD|High: $3,314 AUD|Avg: $1,183 AUD|-3.3%
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
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Retailer 15
November 5, 2026
Retailer 2$303 AUD
Retailer 1$339 AUD
Retailer 4$586 AUD
Retailer 12$694 AUD
Retailer 11$714 AUD
Retailer 6$721 AUD
Retailer 8$773 AUD
Retailer 7$847 AUD
Retailer 10$1,013 AUD
Retailer 15$1,210 AUD
Retailer 9$1,654 AUD
Retailer 5$1,694 AUD
Retailer 3$1,706 AUD
Retailer 13$2,514 AUD
Retailer 14$2,636 AUD

45 data points across 15 retailers

26 retailers$303 AUD to $2,900 AUD

A
Cheapest Retailer
-
$303 AUD
A
Retailer 2
-
$339 AUD
View
Final sale: no returns
Retailer 3
-
$351 AUD
View
Price last confirmed 40 days ago
Retailer 4
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$370 AUD
View
Price last confirmed 38 days ago
Retailer 5
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$374 AUD
View
Price last confirmed 34 days ago
A
Retailer 6
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$584 AUD
View
A
Retailer 7
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$586 AUD
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A
Retailer 8
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$694 AUD
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A
Retailer 9
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$714 AUD
View
A
Retailer 10
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$721 AUD
View
A
Retailer 11
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$773 AUD
View
A
Retailer 12
-
$847 AUD
View
A
Retailer 13
-
$904 AUD
View
A
Retailer 14
-
$1,013 AUD
View
B+
Retailer 15
-
$1,210 AUD
View
B+
Retailer 16
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$1,330 AUD
View
Retailer 17
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$1,330 AUD
View
Price last confirmed 27 days ago
Retailer 18
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$1,330 AUD
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Price last confirmed 37 days ago
B+
Retailer 19
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$1,574 AUD
View
B+
Retailer 20
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$1,654 AUD
View
B+
Retailer 21
-
$1,694 AUD
View
Retailer 22
-
$1,706 AUD
View
Price last confirmed 29 days ago
B
Retailer 23
-
$1,757 AUD
View
B
Retailer 24
-
$2,514 AUD
View
Retailer 25
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$2,636 AUD
View
Price last confirmed 19 days ago
Most Expensive
B
Do Amore Diamonds
27-80DE62B69 · Nov 4
$2,900 AUD
$2,030 USD
View
25 more retailers have this diamond
Prices start from $303 AUDSave up to $2,597 AUD

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
$303 AUD