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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG567368239

Shape and cutting style on the report: Round brilliant

Certificate IGI LG567368239

Diamond specifications and retailer prices

From $288 AUD
$202 USD
As of October 29, 2026
Save $1,385 AUD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,729 AUD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round 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 LG567368239 or 567368239. Listed at 17 retailers as of October 29, 2026, with a 482% 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

1.28
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG567368239
Dimensions6.98 × 6.92 × 4.30 mm
L/W Ratio1.01
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
6.98 mm6.92 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG567368239
Side View
Table 55.5%Crown 35.4°Girdle: Med.Pavilion 40.4°Culet: NoneDepth 61.9%

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: $1,729 AUD|Low: $288 AUD|High: $1,751 AUD|Avg: $793 AUD|-1.2%
Rare Carat
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
October 30, 2026
Retailer 3$288 AUD
Retailer 15$320 AUD
Retailer 14$333 AUD
Retailer 8$356 AUD
Retailer 9$356 AUD
Retailer 2$576 AUD
Retailer 12$611 AUD
Retailer 5$616 AUD
Retailer 10$650 AUD
Retailer 7$814 AUD
Retailer 13$870 AUD
Retailer 17$1,003 AUD
Retailer 6$1,143 AUD
Retailer 16$1,147 AUD
Retailer 4$1,219 AUD
Retailer 11$1,672 AUD
Rare Carat$1,729 AUD

36 data points across 17 retailers

17 retailers$288 AUD to $1,672 AUD

A
Cheapest Retailer
-
$288 AUD
$202 USD
A
Retailer 2
-
$320 AUD
$225 USD
View
Final sale: no returns
A
Retailer 3
-
$333 AUD
$234 USD
View
A
Retailer 4
-
$356 AUD
$250 USD
View
A
Retailer 5
-
$356 AUD
$250 USD
View
A
Retailer 6
-
$576 AUD
£319 GBP
View
A
Retailer 7
-
$611 AUD
ZAR 6,931 ZAR
View
A
Retailer 8
-
$616 AUD
$433 USD
View
A
Retailer 9
-
$650 AUD
£359 GBP
View
A
Retailer 10
-
$814 AUD
$572 USD
View
A
Retailer 11
-
$870 AUD
View
A
Retailer 12
-
$1,003 AUD
$705 USD
View
A
Retailer 13
-
$1,143 AUD
$803 USD
View
A
Retailer 14
-
$1,147 AUD
$806 USD
View
B+
Retailer 15
-
$1,219 AUD
$857 USD
View
B
Retailer 16
-
$1,672 AUD
£925 GBP
View
Most Expensive
Rare Carat
AL/704-11_l_567368239 · Oct 18
$1,729 AUD
$1,215 USD
View
Price last confirmed 12 days ago
16 more retailers have this diamond
Prices start from $288 AUDSave up to $1,385 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 Round
$288 AUD