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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 $299 AUD
As of November 4, 2026
Save $1,787 AUD (86%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $2,086 AUD 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 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 26 retailers as of November 4, 2026, with prices from $299 to $2,086, a $1,787 spread on the same certified stone. Brilliant Earth lists it at $2,086. 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

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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: $2,086 AUD|Low: $299 AUD|High: $2,971 AUD|Avg: $1,002 AUD|-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 5, 2026
Retailer 16$299 AUD
Retailer 5$340 AUD
Retailer 4$439 AUD
Retailer 3$526 AUD
Retailer 9$630 AUD
Retailer 11$640 AUD
Retailer 2$679 AUD
Retailer 6$719 AUD
Retailer 10$907 AUD
Retailer 7$1,134 AUD
Retailer 15$1,197 AUD
Retailer 8$1,313 AUD
Retailer 13$1,317 AUD
Retailer 12$1,487 AUD
Retailer 14$1,828 AUD
Brilliant Earth$2,086 AUD

43 data points across 16 retailers

26 retailers$299 AUD to $2,086 AUD

A
Cheapest Retailer
-
$299 AUD
Retailer 2
-
$299 AUD
View
Price last confirmed 29 days ago
Retailer 3
-
$299 AUD
View
Price last confirmed 37 days ago
Retailer 4
-
$347 AUD
View
Price last confirmed 40 days ago
Retailer 5
-
$366 AUD
View
Price last confirmed 38 days ago
Retailer 6
-
$371 AUD
View
Price last confirmed 34 days ago
A
Retailer 7
-
$439 AUD
View
A
Retailer 8
-
$526 AUD
View
A
Retailer 9
-
$630 AUD
View
A
Retailer 10
-
$640 AUD
View
A
Retailer 11
-
$679 AUD
View
A
Retailer 12
-
$719 AUD
View
A
Retailer 13
-
$799 AUD
View
A
Retailer 14
-
$907 AUD
View
B+
Retailer 15
-
$1,134 AUD
View
B+
Retailer 16
-
$1,193 AUD
View
Retailer 17
-
$1,193 AUD
View
Price last confirmed 27 days ago
Retailer 18
-
$1,193 AUD
View
Price last confirmed 37 days ago
B+
Retailer 19
-
$1,197 AUD
View
B+
Retailer 20
-
$1,261 AUD
View
B+
Retailer 21
-
$1,269 AUD
View
Retailer 22
-
$1,317 AUD
View
Price last confirmed 8 days ago
B+
Retailer 23
-
$1,340 AUD
View
B+
Retailer 24
-
$1,487 AUD
View
Retailer 25
-
$1,828 AUD
View
Price last confirmed 16 days ago
Most Expensive
B
Brilliant Earth
9670732A · Nov 4
$2,086 AUD
$1,460 USD
View
25 more retailers have this diamond
Prices start from $299 AUDSave up to $1,787 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
$299 AUD