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Oval|Lab Grown|IGI

3.11ct E IF Oval Lab Grown Diamond

EX • E/IF • IGI LG621482199

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG621482199

Diamond specifications and retailer prices

From $12,455 AUD
$8,750 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $12,455 AUD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 3.11ct lab-grown oval diamond

This 3.11ct lab-grown oval sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG621482199 or 621482199. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.11
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621482199
Dimensions11.86 × 8.42 × 5.12 mm
L/W Ratio1.41
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
11.86 mm8.42 mm3.11 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621482199
Side View
Table 61.0%Crown 34°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $12,455 AUD|Low: $1,237 AUD|High: $17,195 AUD|Avg: $6,640 AUD|-14.2%
Brilliant Earth
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August 9, 2026
Retailer 12$1,237 AUD
Retailer 2$2,007 AUD
Retailer 13$2,551 AUD
Retailer 14$2,778 AUD
Retailer 8$3,447 AUD
Retailer 3$3,645 AUD
Retailer 6$3,646 AUD
Retailer 5$4,794 AUD
Retailer 9$5,597 AUD
Retailer 11$5,677 AUD
Retailer 7$6,139 AUD
Retailer 10$6,863 AUD
Retailer 4$7,044 AUD
Brilliant Earth$12,455 AUD
Retailer 15$13,764 AUD

67 data points across 15 retailers

1 retailer

B
Brilliant Earth
18396781Y · Oct 29
$12,455 AUD
$8,750 USD
View

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.

B
3.11ct Oval
$12,455 AUD