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Oval|Lab Grown|IGI

1.21ct F FL Oval Lab Grown Diamond

ID • F/FL • IGI LG816615886

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG816615886

Diamond specifications and retailer prices

From $330 AUD
As of November 5, 2026
Save $2,427 AUD (88%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,171 AUD at Rare Carat · As of October 11, 2026
View at Rare Carat

About this 1.21ct lab-grown oval diamond

This 1.21ct lab-grown oval sits in the classic one-carat band, graded F colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816615886 or 816615886. Listed at 20 retailers as of November 4, 2026, with a 735% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615886
Dimensions8.31 × 5.94 × 3.83 mm
L/W Ratio1.40
Girdle conditionFaceted
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
8.31 mm5.94 mm1.21 ctF / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615886
Side View
Table 56.0%Crown 33.8°Girdle: Slightly ThickPavilion 41.3°Culet: NoneDepth 64.5%

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 5
Current: $2,178 AUD|Low: $330 AUD|High: $3,928 AUD|Avg: $1,195 AUD|-31.3%
Rare Carat
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
November 5, 2026
Retailer 13$330 AUD
Retailer 18$369 AUD
Retailer 16$383 AUD
Retailer 4$409 AUD
Retailer 9$416 AUD
Retailer 12$694 AUD
Retailer 7$701 AUD
Retailer 6$717 AUD
Retailer 2$763 AUD
Retailer 15$1,146 AUD
Retailer 14$1,314 AUD
Retailer 17$1,319 AUD
Retailer 11$1,361 AUD
Retailer 19$1,389 AUD
Retailer 10$1,467 AUD
Retailer 3$1,588 AUD
Retailer 5$1,667 AUD
Rare Carat$2,178 AUD
Retailer 8$2,757 AUD

33 data points across 19 retailers

20 retailers$330 AUD to $2,757 AUD

A
Cheapest Retailer
-
$330 AUD
A
Retailer 2
-
$369 AUD
View
Final sale: no returns
A
Retailer 3
-
$383 AUD
View
A
Retailer 4
-
$409 AUD
View
Retailer 5
-
$416 AUD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$694 AUD
View
A
Retailer 7
-
$701 AUD
View
A
Retailer 8
-
$717 AUD
View
A
Retailer 9
-
$763 AUD
View
B+
Retailer 10
-
$1,146 AUD
View
B+
Retailer 11
-
$1,314 AUD
View
B+
Retailer 12
-
$1,319 AUD
View
B+
Retailer 13
-
$1,361 AUD
View
B+
Retailer 14
-
$1,389 AUD
View
B+
Retailer 15
-
$1,467 AUD
View
B+
Retailer 16
-
$1,588 AUD
View
B+
Retailer 17
-
$1,667 AUD
View
B
Retailer 18
-
$2,178 AUD
View
B
Retailer 19
-
$2,757 AUD
View
Most Expensive
Rare Carat
PD8866158JJ816 · Oct 11
$3,171 AUD
$2,220 USD
View
Price last confirmed 25 days ago
19 more retailers have this diamond
Prices start from $330 AUDSave up to $2,427 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
$330 AUD