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Radiant|Lab Grown|IGI

2.57ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG483194823

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG483194823

Diamond specifications and retailer prices

From $816 AUD
$573 USD
As of October 30, 2026
Save $1,177 AUD (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,992 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 2.57ct lab-grown radiant diamond

This 2.57ct lab-grown radiant sits in the two to three carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG483194823 or 483194823. Listed at 6 retailers as of October 29, 2026, with prices from $816 to $1,992, a $1,177 spread on the same certified stone. MOH London lists it at $1,992. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.57
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle29.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG483194823
Dimensions8.93 × 6.86 × 4.53 mm
L/W Ratio1.30
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
8.93 mm6.86 mm2.57 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG483194823
Side View
Table 63.5%Crown 44°Girdle: MediumPavilion 29.9°Culet: NoneDepth 66.0%

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 30
Current: $1,992 AUD|Low: $666 AUD|High: $7,574 AUD|Avg: $2,175 AUD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 3$816 AUD
Retailer 2$872 AUD
Retailer 5$927 AUD
Retailer 4$1,162 AUD
Retailer 6$1,662 AUD
MOH London$1,992 AUD
Retailer 7$7,574 AUD

35 data points across 7 retailers

6 retailers$816 AUD to $1,992 AUD

B+
Cheapest Retailer
-
$816 AUD
$573 USD
A
Retailer 2
-
$872 AUD
£482 GBP
View
A
Retailer 3
-
$927 AUD
$651 USD
View
B+
Retailer 4
-
$1,162 AUD
$816 USD
View
B+
Retailer 5
-
$1,662 AUD
$1,167 USD
View
Most Expensive
B
MOH London
LG483194823 · Oct 29
$1,992 AUD
£1,102 GBP
View
5 more retailers have this diamond
Prices start from $816 AUDSave up to $1,177 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
2.57ct Radiant
$816 AUD