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Round|Lab Grown|IGI

1.28ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG819605837

Shape and cutting style on the report: Round brilliant

Certificate IGI LG819605837

Diamond specifications and retailer prices

From $273 AUD
$192 USD
As of October 29, 2026
Save $1,392 AUD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,665 AUD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

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 LG819605837 or 819605837. Listed at 17 retailers as of October 28, 2026, with prices from $273 to $1,665, a $1,392 spread on the same certified stone. Reve Diamonds lists it at $1,665. 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 angle33.2°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819605837
Dimensions6.97 × 7.02 × 4.31 mm
L/W Ratio1.01
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
6.97 mm7.02 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819605837
Side View
Table 57.0%Crown 33.2°Girdle: MediumPavilion 41.4°Culet: NoneDepth 61.5%

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: $616 AUD|Low: $273 AUD|High: $1,717 AUD|Avg: $831 AUD|+4.6%
Retailer 1
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
Reve Diamonds
October 30, 2026
Retailer 14$273 AUD
Retailer 2$305 AUD
Retailer 12$317 AUD
Retailer 3$340 AUD
Retailer 4$340 AUD
Retailer 5$473 AUD
Retailer 9$551 AUD
Retailer 10$583 AUD
Retailer 1$616 AUD
Retailer 6$693 AUD
Retailer 11$829 AUD
Retailer 7$999 AUD
Retailer 15$1,092 AUD
Retailer 13$1,096 AUD
Retailer 8$1,169 AUD
Retailer 16$1,596 AUD
Reve Diamonds$1,665 AUD

43 data points across 17 retailers

17 retailers$273 AUD to $1,665 AUD

A
Cheapest Retailer
-
$273 AUD
$192 USD
A
Retailer 2
-
$305 AUD
$214 USD
View
Final sale: no returns
A
Retailer 3
-
$317 AUD
$223 USD
View
A
Retailer 4
-
$340 AUD
$239 USD
View
A
Retailer 5
-
$340 AUD
$239 USD
View
B+
Retailer 6
-
$473 AUD
$332 USD
View
A
Retailer 7
-
$551 AUD
£305 GBP
View
A
Retailer 8
-
$583 AUD
ZAR 6,621 ZAR
View
A
Retailer 9
-
$616 AUD
£341 GBP
View
A
Retailer 10
-
$693 AUD
$487 USD
View
A
Retailer 11
-
$829 AUD
View
A
Retailer 12
-
$999 AUD
$702 USD
View
A
Retailer 13
-
$1,092 AUD
$767 USD
View
A
Retailer 14
-
$1,096 AUD
$770 USD
View
B+
Retailer 15
-
$1,169 AUD
$821 USD
View
B+
Retailer 16
-
$1,596 AUD
£883 GBP
View
Most Expensive
B+
Reve Diamonds
96EC1F431 · Oct 28
$1,665 AUD
$1,170 USD
View
16 more retailers have this diamond
Prices start from $273 AUDSave up to $1,392 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
$273 AUD