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Round|Lab Grown|IGI

2.50ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG499190306

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499190306

Diamond specifications and retailer prices

From $2,178 AUD
$1,530 USD
As of October 30, 2026
Save $12,917 AUD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,095 AUD at Moon Ocean · As of October 30, 2026
View at Moon Ocean

About this 2.5ct lab-grown round diamond

This 2.5ct lab-grown round sits in the two to three carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499190306 or 499190306. Listed at 12 retailers as of October 30, 2026, with prices from $2,178 to $15,095, a $12,917 spread on the same certified stone. Moon Ocean lists it at $15,095. 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

2.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499190306
Dimensions8.75 × 8.81 × 5.21 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.75 mm8.81 mm2.50 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499190306
Side View
Table 60.5%Crown 34.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 59.3%

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: $15,095 AUD|Low: $2,178 AUD|High: $15,256 AUD|Avg: $7,649 AUD|+0.6%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$2,178 AUD
Retailer 6$4,640 AUD
Retailer 9$5,196 AUD
Retailer 7$5,383 AUD
Retailer 5$5,602 AUD
Retailer 10$6,262 AUD
Retailer 4$7,424 AUD
Retailer 8$8,354 AUD
Retailer 3$13,715 AUD
Moon Ocean$15,095 AUD

40 data points across 10 retailers

12 retailers$2,178 AUD to $15,095 AUD

A
Cheapest Retailer
-
$2,178 AUD
$1,530 USD
B+
Retailer 2
-
$4,640 AUD
$3,259 USD
View
B+
Retailer 3
-
$5,048 AUD
$3,546 USD
View
B+
Retailer 4
-
$5,196 AUD
$3,650 USD
View
Final sale: no returns
B
Retailer 5
-
$5,383 AUD
$3,781 USD
View
Retailer 6
-
$5,383 AUD
$3,781 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$5,602 AUD
$3,935 USD
View
B
Retailer 8
-
$6,725 AUD
$4,724 USD
View
B
Retailer 9
-
$7,424 AUD
$5,215 USD
View
B
Retailer 10
-
$8,354 AUD
$5,868 USD
View
B
Retailer 11
-
$13,715 AUD
£7,586 GBP
View
Most Expensive
B
Moon Ocean
NVL-04D69BC98-306 · Oct 30
$15,095 AUD
£8,349 GBP
View
11 more retailers have this diamond
Prices start from $2,178 AUDSave up to $12,917 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 Round
$2,178 AUD