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Oval|Lab Grown|IGI

3.38ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG728580681

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG728580681

Diamond specifications and retailer prices

From $1,688 AUD
$1,186 USD
As of October 29, 2026
Save $11,850 AUD (88%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $13,538 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.38ct lab-grown oval diamond

This 3.38ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG728580681 or 728580681. Listed at 28 retailers as of October 29, 2026, with prices from $1,688 to $13,538, a $11,850 spread on the same certified stone. Brilliant Earth lists it at $13,538. 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

3.38
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728580681
Dimensions11.97 × 8.50 × 5.33 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
11.97 mm8.50 mm3.38 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728580681
Side View
Table 59.0%Crown 36.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $13,538 AUD|Low: $1,687 AUD|High: $19,233 AUD|Avg: $4,890 AUD|-29.6%
Brilliant Earth
Retailer 2
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Retailer 25
October 30, 2026
Retailer 23$1,688 AUD
Retailer 16$1,838 AUD
Retailer 8$1,959 AUD
Retailer 20$2,064 AUD
Retailer 21$2,160 AUD
Retailer 25$2,333 AUD
Retailer 2$2,338 AUD
Retailer 5$2,387 AUD
Retailer 13$2,842 AUD
Retailer 24$2,958 AUD
Retailer 7$3,147 AUD
Retailer 14$3,671 AUD
Retailer 3$3,859 AUD
Retailer 19$4,549 AUD
Retailer 17$4,611 AUD
Retailer 4$5,001 AUD
Retailer 22$5,081 AUD
Retailer 10$5,622 AUD
Retailer 9$6,180 AUD
Retailer 6$6,303 AUD
Retailer 15$6,862 AUD
Retailer 11$6,921 AUD
Retailer 12$7,504 AUD
Retailer 18$11,502 AUD
Brilliant Earth$13,538 AUD

27 data points across 25 retailers

28 retailers$1,688 AUD to $13,538 AUD

A
Cheapest Retailer
-
$1,688 AUD
$1,186 USD
A
Retailer 2
-
$1,838 AUD
$1,291 USD
View
A
Retailer 3
-
$1,959 AUD
$1,376 USD
View
A
Retailer 4
-
$2,064 AUD
$1,450 USD
View
A
Retailer 5
-
$2,160 AUD
$1,517 USD
View
Final sale: no returns
A
Retailer 6
-
$2,333 AUD
$1,639 USD
View
A
Retailer 7
-
$2,338 AUD
£1,293 GBP
View
A
Retailer 8
-
$2,387 AUD
HK$13,100 HKD
View
A
Retailer 9
-
$2,842 AUD
£1,572 GBP
View
A
Retailer 10
-
$2,958 AUD
$2,078 USD
View
A
Retailer 11
-
$3,147 AUD
€2,105 EUR
View
A
Retailer 12
-
$3,671 AUD
$2,579 USD
View
A
Retailer 13
-
$3,859 AUD
$2,711 USD
View
A
Retailer 14
-
$4,181 AUD
View
A
Retailer 15
-
$4,549 AUD
ZAR 51,619 ZAR
View
Retailer 16
-
$4,611 AUD
View
Price last confirmed 8 days ago
Retailer 17
-
$4,925 AUD
£2,724 GBP
View
Price last confirmed 29 days ago
B+
Retailer 18
-
$5,001 AUD
$3,513 USD
View
B+
Retailer 19
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$5,081 AUD
$3,569 USD
View
B+
Retailer 20
-
$5,622 AUD
$3,949 USD
View
B+
Retailer 21
-
$6,180 AUD
$4,341 USD
View
B+
Retailer 22
-
$6,303 AUD
£3,486 GBP
View
B+
Retailer 23
-
$6,862 AUD
$4,820 USD
View
B+
Retailer 24
-
$6,921 AUD
SGD 6,570 SGD
View
B+
Retailer 25
-
$7,504 AUD
$5,271 USD
View
Retailer 26
-
$8,556 AUD
$6,010 USD
View
Price last confirmed 32 days ago
Retailer 27
-
$11,502 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
15744546A · Oct 30
$13,538 AUD
$9,510 USD
View
27 more retailers have this diamond
Prices start from $1,688 AUDSave up to $11,850 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
3.38ct Oval
$1,688 AUD