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Round|Lab Grown|IGI

2.50ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG494173816

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494173816

Diamond specifications and retailer prices

From $1,530 USD
As of October 30, 2026
Save $9,073 USD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $10,603 USD 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 LG494173816 or 494173816. Listed at 12 retailers as of October 30, 2026, with prices from $1,530 to $10,603, a $9,073 spread on the same certified stone. Moon Ocean lists it at $10,603. 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
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494173816
Dimensions8.84 × 8.90 × 5.15 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
8.84 mm8.90 mm2.50 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494173816
Side View
Table 62.0%Crown 32.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 58.0%

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: $10,603 USD|Low: $1,530 USD|High: $13,529 USD|Avg: $6,113 USD|-1.0%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$1,530 USD
Retailer 6$3,259 USD
Retailer 9$3,650 USD
Retailer 7$3,781 USD
Retailer 10$3,935 USD
Retailer 11$4,399 USD
Retailer 5$5,215 USD
Retailer 8$5,868 USD
Retailer 4$9,634 USD
Moon Ocean$10,603 USD
Retailer 3$13,529 USD

37 data points across 11 retailers

12 retailers$1,530 USD to $10,603 USD

A
Cheapest Retailer
-
$1,530 USD
B+
Retailer 2
-
$3,259 USD
View
B+
Retailer 3
-
$3,546 USD
View
B+
Retailer 4
-
$3,650 USD
View
Final sale: no returns
Retailer 5
-
$3,781 USD
View
Price last confirmed 17 days ago
B
Retailer 6
-
$3,781 USD
View
B
Retailer 7
-
$3,935 USD
View
B
Retailer 8
-
$4,724 USD
View
B
Retailer 9
-
$5,215 USD
View
B
Retailer 10
-
$5,868 USD
View
B
Retailer 11
-
$9,634 USD
£7,586 GBP
View
Most Expensive
B
Moon Ocean
NVL-EAC366E91-816 · Oct 30
$10,603 USD
£8,349 GBP
View
11 more retailers have this diamond
Prices start from $1,530 USDSave up to $9,073 USD

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
$1,530 USD