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Oval|Lab Grown|IGI

1.28ct E IF Oval Lab Grown Diamond

EX • E/IF • IGI LG735568337

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG735568337

Diamond specifications and retailer prices

From $413 AUD
$290 USD
As of October 29, 2026
Save $2,434 AUD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,847 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.28ct lab-grown oval diamond

This 1.28ct lab-grown oval sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG735568337 or 735568337. Listed at 13 retailers as of October 29, 2026, with prices from $413 to $2,847, a $2,434 spread on the same certified stone. Brilliant Earth lists it at $2,847. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG735568337
Dimensions6.07 × 6.07 × 3.84 mm
L/W Ratio1.00
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
6.07 mm6.07 mm1.28 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG735568337
Side View
Table 60.0%Crown 35.4°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.3%

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: Oct 29
Current: $2,847 AUD|Low: $363 AUD|High: $4,413 AUD|Avg: $1,232 AUD|-35.5%
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
October 30, 2026
Retailer 12$413 AUD
Retailer 2$426 AUD
Retailer 15$567 AUD
Retailer 5$658 AUD
Retailer 17$690 AUD
Retailer 11$749 AUD
Retailer 14$855 AUD
Retailer 4$872 AUD
Retailer 10$890 AUD
Retailer 3$980 AUD
Retailer 6$1,179 AUD
Retailer 18$1,224 AUD
Retailer 8$1,366 AUD
Retailer 7$1,562 AUD
Retailer 13$1,620 AUD
Retailer 16$1,825 AUD
Retailer 9$2,547 AUD
Brilliant Earth$2,847 AUD

5 data points across 18 retailers

13 retailers$413 AUD to $2,847 AUD

A
Cheapest Retailer
-
$413 AUD
$290 USD
Final sale: no returns
A
Retailer 2
-
$426 AUD
£236 GBP
View
A
Retailer 3
-
$567 AUD
$398 USD
View
A
Retailer 4
-
$690 AUD
ZAR 7,835 ZAR
View
A
Retailer 5
-
$749 AUD
£414 GBP
View
A
Retailer 6
-
$855 AUD
$601 USD
View
A
Retailer 7
-
$872 AUD
$613 USD
View
B+
Retailer 8
-
$980 AUD
View
B+
Retailer 9
-
$1,224 AUD
$860 USD
View
B+
Retailer 10
-
$1,366 AUD
$960 USD
View
B
Retailer 11
-
$1,620 AUD
£896 GBP
View
B
Retailer 12
-
$1,825 AUD
$1,282 USD
View
Most Expensive
B
Brilliant Earth
17527358A · Oct 29
$2,847 AUD
$2,000 USD
View
12 more retailers have this diamond
Prices start from $413 AUDSave up to $2,434 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
1.28ct Oval
$413 AUD