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Round|Lab Grown|IGI

1.55ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG494162260

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494162260

Diamond specifications and retailer prices

From $1,751 AUD
$1,230 USD
As of October 31, 2026
Save $5,993 AUD (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,744 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG494162260 or 494162260. Listed at 11 retailers as of October 31, 2026, with prices from $1,751 to $7,744, a $5,993 spread on the same certified stone. MOH London lists it at $7,744. 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

1.55
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494162260
Dimensions7.40 × 7.36 × 4.58 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
7.40 mm7.36 mm1.55 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494162260
Side View
Table 56.5%Crown 35.7°Girdle: MediumPavilion 40.3°Culet: NoneDepth 62.1%

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: Oct 31
Current: $7,744 AUD|Low: $1,751 AUD|High: $7,847 AUD|Avg: $3,489 AUD
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 1, 2026
Retailer 2$1,751 AUD
Retailer 7$2,338 AUD
Retailer 10$2,543 AUD
Retailer 12$2,617 AUD
Retailer 8$2,712 AUD
Retailer 13$2,712 AUD
Retailer 5$2,822 AUD
Retailer 3$2,954 AUD
Retailer 4$3,633 AUD
Retailer 9$4,261 AUD
Retailer 6$4,675 AUD
Retailer 11$5,082 AUD
MOH London$7,744 AUD

18 data points across 13 retailers

11 retailers$1,751 AUD to $7,744 AUD

A
Cheapest Retailer
-
$1,751 AUD
$1,230 USD
B+
Retailer 2
-
$2,338 AUD
$1,642 USD
View
B+
Retailer 3
-
$2,543 AUD
$1,786 USD
View
B+
Retailer 4
-
$2,617 AUD
$1,838 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,712 AUD
$1,905 USD
View
Retailer 6
-
$2,712 AUD
$1,905 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
$2,954 AUD
$2,075 USD
View
B
Retailer 8
-
$4,261 AUD
$2,993 USD
View
B
Retailer 9
-
$4,675 AUD
$3,284 USD
View
B
Retailer 10
-
$5,082 AUD
$3,570 USD
View
Most Expensive
B
MOH London
LG494162260 · Nov 1
$7,744 AUD
£4,283 GBP
View
10 more retailers have this diamond
Prices start from $1,751 AUDSave up to $5,993 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
1.55ct Round
$1,751 AUD