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Oval|Lab Grown|IGI

1.21ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG739579757

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG739579757

Diamond specifications and retailer prices

From $372 AUD
As of November 3, 2026
Save $2,650 AUD (88%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,022 AUD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown oval diamond

This 1.21ct lab-grown oval 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 LG739579757 or 739579757. Listed at 24 retailers as of November 3, 2026, with prices from $372 to $3,022, a $2,650 spread on the same certified stone. Brilliant Earth lists it at $3,022. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG739579757
Dimensions8.44 × 5.95 × 3.80 mm
L/W Ratio1.42
Girdle conditionFaceted
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
8.44 mm5.95 mm1.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG739579757
Side View
Table 59.0%Crown 34.6°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 63.9%

Caratlytics Score

How it works →
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 3
Current: $3,022 AUD|Low: $369 AUD|High: $4,476 AUD|Avg: $1,219 AUD|-32.5%
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
Retailer 19
Retailer 20
Retailer 21
November 5, 2026
Retailer 11$372 AUD
Retailer 19$415 AUD
Retailer 3$432 AUD
Retailer 7$462 AUD
Retailer 14$462 AUD
Retailer 20$691 AUD
Retailer 8$768 AUD
Retailer 17$794 AUD
Retailer 6$818 AUD
Retailer 21$860 AUD
Retailer 2$872 AUD
Retailer 5$1,102 AUD
Retailer 15$1,132 AUD
Retailer 16$1,242 AUD
Retailer 10$1,483 AUD
Retailer 12$1,555 AUD
Retailer 18$1,773 AUD
Retailer 13$1,842 AUD
Retailer 9$1,979 AUD
Retailer 4$2,202 AUD
Brilliant Earth$3,022 AUD

36 data points across 21 retailers

24 retailers$372 AUD to $3,022 AUD

Retailer 1
-
$369 AUD
Price last confirmed 44 days ago
A
Retailer 2
-
$372 AUD
View
A
Retailer 3
-
$415 AUD
View
Final sale: no returns
A
Retailer 4
-
$432 AUD
View
Retailer 5
-
$452 AUD
View
Price last confirmed 44 days ago
A
Retailer 6
-
$462 AUD
View
Retailer 7
-
$462 AUD
View
Price last confirmed 11 days ago
A
Retailer 8
-
$691 AUD
View
A
Retailer 9
-
$768 AUD
View
A
Retailer 10
-
$794 AUD
View
A
Retailer 11
-
$818 AUD
View
B+
Retailer 12
-
$860 AUD
View
A
Retailer 13
-
$872 AUD
View
B+
Retailer 14
-
$1,102 AUD
View
B+
Retailer 15
-
$1,132 AUD
View
B+
Retailer 16
-
$1,242 AUD
View
B+
Retailer 17
-
$1,483 AUD
View
B
Retailer 18
-
$1,555 AUD
View
B
Retailer 19
-
$1,703 AUD
View
B
Retailer 20
-
$1,773 AUD
View
B+
Retailer 21
-
$1,842 AUD
View
B
Retailer 22
-
$1,979 AUD
View
Retailer 23
-
$2,202 AUD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
16737142A · Nov 4
$3,022 AUD
$2,120 USD
View
23 more retailers have this diamond
Prices start from $372 AUDSave up to $2,650 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 Oval
$372 AUD