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Round|Lab Grown|IGI

3.00ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG490193308

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490193308

Diamond specifications and retailer prices

From $1,680 USD
As of October 31, 2026
Save $12,953 USD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $14,633 USD at MOH London · As of October 29, 2026
View at MOH London

About this 3ct lab-grown round diamond

This 3ct lab-grown round sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490193308 or 490193308. Listed at 11 retailers as of October 29, 2026, with prices from $1,680 to $14,633, a $12,953 spread on the same certified stone. MOH London lists it at $14,633. 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

3.00
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490193308
Dimensions9.26 × 9.20 × 5.66 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
9.26 mm9.20 mm3.00 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490193308
Side View
Table 59.0%Crown 35.3°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.3%

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 31
Current: $14,633 USD|Low: $1,680 USD|High: $14,729 USD|Avg: $8,086 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$1,680 USD
Retailer 4$6,166 USD
Retailer 7$6,905 USD
Retailer 8$7,140 USD
Retailer 5$7,153 USD
Retailer 9$7,599 USD
Retailer 3$8,505 USD
Retailer 6$11,037 USD
MOH London$14,633 USD

13 data points across 9 retailers

11 retailers$1,680 USD to $14,633 USD

A
Cheapest Retailer
-
$1,680 USD
B
Retailer 2
-
$6,166 USD
View
B
Retailer 3
-
$6,462 USD
View
B
Retailer 4
-
$6,905 USD
View
Final sale: no returns
B
Retailer 5
-
$7,140 USD
View
Retailer 6
-
$7,153 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$7,153 USD
View
B
Retailer 8
-
$8,491 USD
View
B
Retailer 9
-
$8,505 USD
View
B
Retailer 10
-
$11,037 USD
View
Most Expensive
B
MOH London
LG490193308 · Oct 29
$14,633 USD
£11,522 GBP
View
10 more retailers have this diamond
Prices start from $1,680 USDSave up to $12,953 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
3.00ct Round
$1,680 USD