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Oval|Lab Grown|IGI

1.21ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG776609259

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG776609259

Diamond specifications and retailer prices

From $306 AUD
As of November 3, 2026
Save $2,245 AUD (88%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $2,552 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 LG776609259 or 776609259. Listed at 21 retailers as of November 3, 2026, with prices from $306 to $2,552, a $2,245 spread on the same certified stone. Brilliant Earth lists it at $2,552. 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 angle34.3°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG776609259
Dimensions8.64 × 6.04 × 3.72 mm
L/W Ratio1.43
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
8.64 mm6.04 mm1.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG776609259
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 3
Current: $2,552 AUD|Low: $306 AUD|High: $3,165 AUD|Avg: $1,085 AUD|-19.4%
Brilliant Earth
Retailer 2
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Retailer 21
November 5, 2026
Retailer 3$306 AUD
Retailer 11$341 AUD
Retailer 7$355 AUD
Retailer 4$379 AUD
Retailer 18$617 AUD
Retailer 14$651 AUD
Retailer 16$656 AUD
Retailer 2$696 AUD
Retailer 9$832 AUD
Retailer 19$860 AUD
Retailer 13$928 AUD
Retailer 15$981 AUD
Retailer 10$1,079 AUD
Retailer 6$1,222 AUD
Retailer 5$1,234 AUD
Retailer 12$1,296 AUD
Retailer 8$1,477 AUD
Retailer 17$1,522 AUD
Retailer 20$1,773 AUD
Retailer 21$2,202 AUD
Brilliant Earth$2,552 AUD

42 data points across 21 retailers

21 retailers$306 AUD to $2,552 AUD

A
Cheapest Retailer
-
$306 AUD
A
Retailer 2
-
$341 AUD
View
Final sale: no returns
A
Retailer 3
-
$355 AUD
View
A
Retailer 4
-
$379 AUD
View
A
Retailer 5
-
$617 AUD
View
A
Retailer 6
-
$651 AUD
View
A
Retailer 7
-
$656 AUD
View
A
Retailer 8
-
$696 AUD
View
A
Retailer 9
-
$832 AUD
View
A
Retailer 10
-
$860 AUD
View
A
Retailer 11
-
$928 AUD
View
B+
Retailer 12
-
$981 AUD
View
B+
Retailer 13
-
$1,079 AUD
View
B+
Retailer 14
-
$1,222 AUD
View
B+
Retailer 15
-
$1,234 AUD
View
B+
Retailer 16
-
$1,296 AUD
View
B+
Retailer 17
-
$1,477 AUD
View
B+
Retailer 18
-
$1,522 AUD
View
B
Retailer 19
-
$1,773 AUD
View
Retailer 20
-
$2,202 AUD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
18180993A · Nov 4
$2,552 AUD
$1,790 USD
View
20 more retailers have this diamond
Prices start from $306 AUDSave up to $2,245 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
$306 AUD