CaratHunter
Plans
Cushion|Lab Grown|IGI

2.50ct H SI1 Cushion Lab Grown Diamond

VG • H/SI1 • IGI LG450012436

Shape and cutting style on the report: Cushion cut

Certificate IGI LG450012436

Diamond specifications and retailer prices

From $854 AUD
As of November 6, 2026
Save $3,981 AUD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $4,835 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 2.5ct lab-grown cushion diamond

This 2.5ct lab-grown cushion sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG450012436 or 450012436. Listed at 13 retailers as of November 5, 2026, with prices from $854 to $4,835, a $3,981 spread on the same certified stone. MOH London lists it at $4,835. 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

2.50
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle35.3°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450012436
Dimensions8.37 × 7.42 × 5.05 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD). Type IIa
Top View
8.37 mm7.42 mm2.50 ctH / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateIGI LG450012436
Side View
Table 61.0%Crown 35.3°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 68.1%

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: Nov 6
Current: $4,835 AUD|Low: $854 AUD|High: $4,913 AUD|Avg: $2,235 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 5$854 AUD
Retailer 9$899 AUD
Retailer 13$1,007 AUD
Retailer 10$1,115 AUD
Retailer 11$1,115 AUD
Retailer 3$1,303 AUD
Retailer 2$1,579 AUD
Retailer 4$1,707 AUD
Retailer 6$2,416 AUD
Retailer 8$2,765 AUD
Retailer 12$3,235 AUD
Retailer 7$4,717 AUD
MOH London$4,835 AUD

36 data points across 13 retailers

13 retailers$854 AUD to $4,835 AUD

A
Cheapest Retailer
-
$854 AUD
B+
Retailer 2
-
$899 AUD
View
B+
Retailer 3
-
$1,007 AUD
View
B+
Retailer 4
-
$1,115 AUD
View
Retailer 5
-
$1,115 AUD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$1,303 AUD
View
B+
Retailer 7
-
$1,579 AUD
View
B+
Retailer 8
-
$1,707 AUD
View
B+
Retailer 9
-
$2,416 AUD
View
B+
Retailer 10
-
$2,765 AUD
View
B
Retailer 11
-
$3,235 AUD
View
B
Retailer 12
-
$4,717 AUD
View
Most Expensive
B
MOH London
LG450012436 · Nov 5
$4,835 AUD
£2,616 GBP
View
12 more retailers have this diamond
Prices start from $854 AUDSave up to $3,981 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
2.50ct Cushion
$854 AUD