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Radiant|Lab Grown|IGI

2.57ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG485160984

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

Certificate IGI LG485160984

Diamond specifications and retailer prices

From $816 AUD
$573 USD
As of October 30, 2026
Save $1,169 AUD (59%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,985 AUD at MOH London · As of October 26, 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 LG485160984 or 485160984. Listed at 6 retailers as of October 26, 2026, with prices from $816 to $1,985, a $1,169 spread on the same certified stone. MOH London lists it at $1,985. 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 angle44.1°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG485160984
Dimensions8.90 × 6.84 × 4.66 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
8.90 mm6.84 mm2.57 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG485160984
Side View
Table 60.5%Crown 44.1°Girdle: MED-STKPavilion 30.4°Culet: NoneDepth 68.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,985 AUD|Low: $666 AUD|High: $7,574 AUD|Avg: $2,175 AUD|-1.1%
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$1,985 AUD
Retailer 7$7,574 AUD

35 data points across 7 retailers

6 retailers$816 AUD to $1,985 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
LG485160984 · Oct 26
$1,985 AUD
£1,098 GBP
View
5 more retailers have this diamond
Prices start from $816 AUDSave up to $1,169 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