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Round|Lab Grown|IGI

0.28ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG648420907

Shape and cutting style on the report: Round brilliant

Certificate IGI LG648420907

Diamond specifications and retailer prices

From $100 AUD
$70 USD
As of October 29, 2026
Save $453 AUD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $552 AUD at B2C Jewels · As of October 29, 2026
View at B2C Jewels

About this 0.28ct lab-grown round diamond

This 0.28ct lab-grown round sits in the sub-half-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG648420907 or 648420907. Listed at 12 retailers as of October 29, 2026, with prices from $100 to $552, a $453 spread on the same certified stone. B2C Jewels lists it at $552. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.28
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648420907
Dimensions4.30 × 4.28 × 2.55 mm
L/W Ratio1.00
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
4.30 mm4.28 mm0.28 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648420907
Side View
Table 59.0%Crown 34.1°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 59.6%

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: $552 AUD|Low: $95 AUD|High: $552 AUD|Avg: $268 AUD|+1.3%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 18, 2026
Retailer 5$100 AUD
Retailer 12$115 AUD
Retailer 10$131 AUD
Retailer 11$131 AUD
Retailer 6$174 AUD
Retailer 2$185 AUD
Retailer 8$251 AUD
Retailer 7$270 AUD
Retailer 3$366 AUD
Retailer 9$397 AUD
Retailer 4$483 AUD
B2C Jewels$552 AUD

11 data points across 12 retailers

12 retailers$100 AUD to $552 AUD

A
Cheapest Retailer
-
$100 AUD
$70 USD
A
Retailer 2
-
$115 AUD
$81 USD
View
A
Retailer 3
-
$131 AUD
$92 USD
View
A
Retailer 4
-
$131 AUD
$92 USD
View
B+
Retailer 5
-
$174 AUD
$122 USD
View
Retailer 6
-
$185 AUD
$130 USD
View
Price last confirmed 12 days ago
B+
Retailer 7
-
$251 AUD
€168 EUR
View
B
Retailer 8
-
$270 AUD
$190 USD
View
B
Retailer 9
-
$366 AUD
SGD 347 SGD
View
B
Retailer 10
-
$397 AUD
$279 USD
View
B
Retailer 11
-
$483 AUD
$340 USD
View
Most Expensive
B
B2C Jewels
31239392 · Oct 29
$552 AUD
$388 USD
View
11 more retailers have this diamond
Prices start from $100 AUDSave up to $453 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
0.28ct Round
$100 AUD