CaratHunter
Plans
Oval|Lab Grown|IGI

1.21ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG803681088

Shape and cutting style on the report: Oval modified brilliant

Certificate IGI LG803681088

Diamond specifications and retailer prices

From $369 AUD
As of November 3, 2026
Save $3,679 AUD (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,476 AUD at Brilliant Earth · As of October 25, 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 LG803681088 or 803681088. Listed at 24 retailers as of November 3, 2026, with a 997% 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
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.5°
Pavilion angle29.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803681088
Dimensions7.73 × 5.39 × 3.59 mm
L/W Ratio1.43
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
7.73 mm5.39 mm1.21 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803681088
Side View
Table 62.0%Crown 37.5°Girdle: THN-THKPavilion 29.4°Culet: NoneDepth 66.6%

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: $4,048 AUD|Low: $355 AUD|High: $4,476 AUD|Avg: $1,185 AUD|-0.7%
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
November 5, 2026
Retailer 3$369 AUD
Retailer 4$458 AUD
Retailer 8$469 AUD
Retailer 14$684 AUD
Retailer 11$743 AUD
Retailer 5$763 AUD
Retailer 10$790 AUD
Retailer 2$865 AUD
Retailer 9$1,122 AUD
Retailer 13$1,407 AUD
Retailer 6$1,471 AUD
Retailer 7$1,829 AUD
Retailer 12$2,224 AUD
Brilliant Earth$4,048 AUD

38 data points across 14 retailers

24 retailers$369 AUD to $4,048 AUD

A
Cheapest Retailer
-
$369 AUD
A
Retailer 2
-
$413 AUD
View
Final sale: no returns
A
Retailer 3
-
$428 AUD
View
Retailer 4
-
$458 AUD
View
Price last confirmed 20 days ago
A
Retailer 5
-
$458 AUD
View
A
Retailer 6
-
$469 AUD
View
A
Retailer 7
-
$684 AUD
View
A
Retailer 8
-
$743 AUD
View
A
Retailer 9
-
$763 AUD
View
A
Retailer 10
-
$790 AUD
View
A
Retailer 11
-
$815 AUD
View
A
Retailer 12
-
$865 AUD
View
B+
Retailer 13
-
$1,100 AUD
View
B+
Retailer 14
-
$1,122 AUD
View
B+
Retailer 15
-
$1,407 AUD
View
B+
Retailer 16
-
$1,471 AUD
View
B+
Retailer 17
-
$1,475 AUD
View
B+
Retailer 18
-
$1,544 AUD
View
B+
Retailer 19
-
$1,829 AUD
View
B
Retailer 20
-
$1,969 AUD
View
Retailer 21
-
$2,224 AUD
View
Price last confirmed 18 days ago
Retailer 22
-
$3,276 AUD
View
Price last confirmed 8 days ago
B
Retailer 23
-
$4,048 AUD
View
Most Expensive
Brilliant Earth
21656525A · Oct 25
$4,476 AUD
$3,140 USD
View
Price last confirmed 10 days ago
23 more retailers have this diamond
Prices start from $369 AUDSave up to $3,679 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
$369 AUD