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0.28ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG591395640

Shape and cutting style on the report: Round brilliant

Certificate IGI LG591395640

Diamond specifications and retailer prices

From $112 NZD
$63 USD
As of October 29, 2026
Save $445 NZD (80%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $558 NZD at Taylor and Hart · As of October 29, 2026
View at Taylor and Hart

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 LG591395640 or 591395640. Listed at 8 retailers as of October 29, 2026, with prices from $112 to $558, a $445 spread on the same certified stone. Taylor and Hart lists it at $558. 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 angle34.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591395640
Dimensions4.21 × 4.19 × 2.58 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
4.21 mm4.19 mm0.28 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591395640
Side View
Table 55.0%Crown 34.3°Girdle: MediumPavilion 40.4°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: $294 NZD|Low: $112 NZD|High: $725 NZD|Avg: $404 NZD|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
October 29, 2026
Retailer 3$112 NZD
Retailer 2$231 NZD
Retailer 1$294 NZD
Retailer 4$335 NZD
Retailer 6$445 NZD
Taylor and Hart$558 NZD
Retailer 5$725 NZD

9 data points across 7 retailers

8 retailers$112 NZD to $558 NZD

A
Cheapest Retailer
-
$112 NZD
$63 USD
A
Retailer 2
-
$148 NZD
$83 USD
View
A
Retailer 3
-
$148 NZD
$83 USD
View
B+
Retailer 4
-
$231 NZD
$130 USD
View
Price last confirmed 11 days ago
B+
Retailer 5
-
$294 NZD
€157 EUR
View
B
Retailer 6
-
$335 NZD
$188 USD
View
B
Retailer 7
-
$449 NZD
$252 USD
View
Most Expensive
B
Taylor and Hart
4OAQVK6 · Oct 29
$558 NZD
$313 USD
View
7 more retailers have this diamond
Prices start from $112 NZDSave up to $445 NZD

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
$112 NZD