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Round|Lab Grown|IGI

1.28ct E FL Round Lab Grown Diamond

EX • E/FL

Diamond specifications and retailer prices

From $837 AUD
$588 USD
As of October 29, 2026
Save $2,349 AUD (74%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,186 AUD at Helzberg Diamonds · As of October 29, 2026
View at Helzberg 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 FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI. Listed at 2 retailers as of October 29, 2026, with prices from $837 to $3,186, a $2,349 spread on the same certified stone. Helzberg Diamonds lists it at $3,186. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions6.93 × 6.98 mm
L/W Ratio1.01
Top View
6.93 mm6.98 mm1.28 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $3,186 AUD|Low: $837 AUD|High: $3,514 AUD|Avg: $2,230 AUD|-9.4%
Helzberg Diamonds
Retailer 2
October 10, 2026
Retailer 2$837 AUD
Helzberg Diamonds$3,186 AUD

4 data points across 2 retailers

2 retailers$837 AUD to $3,186 AUD

A
Cheapest Retailer
-
$837 AUD
$588 USD
Most Expensive
B
Helzberg Diamonds
ZXZOJMMHPPKP · Oct 29
$3,186 AUD
$2,238 USD
View
1 more retailer has this diamond
Prices start from $837 AUDSave up to $2,349 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
$837 AUD