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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 $1,230 USD
As of October 31, 2026
Save $4,239 USD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,469 USD at MOH London · As of October 29, 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 29, 2026, with prices from $1,230 to $5,469, a $4,239 spread on the same certified stone. MOH London lists it at $5,469. 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
Color
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: $5,469 USD|Low: $1,230 USD|High: $5,512 USD|Avg: $2,449 USD|+0.5%
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
October 30, 2026
Retailer 2$1,230 USD
Retailer 7$1,642 USD
Retailer 10$1,786 USD
Retailer 12$1,838 USD
Retailer 8$1,905 USD
Retailer 13$1,905 USD
Retailer 5$1,982 USD
Retailer 3$2,075 USD
Retailer 4$2,552 USD
Retailer 9$2,993 USD
Retailer 6$3,284 USD
Retailer 11$3,570 USD
MOH London$5,469 USD

17 data points across 13 retailers

11 retailers$1,230 USD to $5,469 USD

A
Cheapest Retailer
-
$1,230 USD
B+
Retailer 2
-
$1,642 USD
View
B+
Retailer 3
-
$1,786 USD
View
B+
Retailer 4
-
$1,838 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,905 USD
View
Retailer 6
-
$1,905 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$2,075 USD
View
B
Retailer 8
-
$2,993 USD
View
B
Retailer 9
-
$3,284 USD
View
B
Retailer 10
-
$3,570 USD
View
Most Expensive
B
MOH London
LG494162260 · Oct 29
$5,469 USD
£4,306 GBP
View
10 more retailers have this diamond
Prices start from $1,230 USDSave up to $4,239 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
1.55ct Round
$1,230 USD