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Oval|Lab Grown|IGI

1.28ct E IF Oval Lab Grown Diamond

ID • E/IF • IGI LG815677214

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG815677214

Diamond specifications and retailer prices

From $367 AUD
$258 USD
As of October 28, 2026
Save $2,480 AUD (87%) vs most expensive(unlock to see where)
20 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 LG815677214 or 815677214. Listed at 20 retailers as of October 28, 2026, with prices from $367 to $2,847, a $2,480 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815677214
Dimensions8.67 × 5.99 × 3.76 mm
L/W Ratio1.45
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
8.67 mm5.99 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815677214
Side View
Table 62.0%Crown 37.9°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
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 28
Current: $2,847 AUD|Low: $272 AUD|High: $3,046 AUD|Avg: $1,246 AUD|-6.5%
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
October 30, 2026
Retailer 5$367 AUD
Retailer 14$572 AUD
Retailer 12$677 AUD
Retailer 8$700 AUD
Retailer 2$766 AUD
Retailer 3$886 AUD
Retailer 9$994 AUD
Retailer 13$1,226 AUD
Retailer 10$1,314 AUD
Retailer 4$1,384 AUD
Retailer 7$1,641 AUD
Retailer 6$1,839 AUD
Retailer 11$2,100 AUD
Brilliant Earth$2,847 AUD

35 data points across 14 retailers

20 retailers$367 AUD to $2,847 AUD

Retailer 1
-
$329 AUD
$231 USD
Price last confirmed 19 days ago
Retailer 2
-
$342 AUD
$240 USD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$367 AUD
$258 USD
View
Final sale: no returns
Retailer 4
-
$397 AUD
$279 USD
View
Price last confirmed 35 days ago
Retailer 5
-
$407 AUD
$286 USD
View
Price last confirmed 17 days ago
Retailer 6
-
$407 AUD
$286 USD
View
Price last confirmed 27 days ago
Retailer 7
-
$418 AUD
$294 USD
View
Price last confirmed 34 days ago
A
Retailer 8
-
$572 AUD
$402 USD
View
A
Retailer 9
-
$700 AUD
ZAR 7,945 ZAR
View
A
Retailer 10
-
$766 AUD
£424 GBP
View
A
Retailer 11
-
$886 AUD
$622 USD
View
B+
Retailer 12
-
$994 AUD
View
B+
Retailer 13
-
$1,226 AUD
$861 USD
View
Retailer 14
-
$1,310 AUD
$920 USD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
$1,314 AUD
$923 USD
View
B+
Retailer 16
-
$1,384 AUD
$973 USD
View
B+
Retailer 17
-
$1,641 AUD
£908 GBP
View
B
Retailer 18
-
$1,839 AUD
$1,292 USD
View
Retailer 19
-
$2,100 AUD
$1,475 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
21017707A · Oct 29
$2,847 AUD
$2,000 USD
View
19 more retailers have this diamond
Prices start from $367 AUDSave up to $2,480 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
$367 AUD