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1.55ct J SI2 Round Lab Grown Diamond

GD • J/SI2 • IGI LG22103609

Shape and cutting style on the report: Round brilliant

Certificate IGI LG22103609

Diamond specifications and retailer prices

From $601 NZD
As of November 5, 2026
Save $2,182 NZD (78%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $2,783 NZD at MOH London · As of November 5, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG22103609 or 22103609. Listed at 4 retailers as of November 5, 2026, with prices from $601 to $2,783, a $2,182 spread on the same certified stone. MOH London lists it at $2,783. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
J
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishGood
SymmetryVery Good
FluorescenceNone
Crown angle40°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG22103609
Dimensions7.31 × 7.27 × 4.53 mm
L/W Ratio1.01
Culet sizeNone
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by High Pressure High Tempertature (HPHT) growth process. FAINT GREEN
Top View
7.31 mm7.27 mm1.55 ctJ / SI2
OriginLab Grown
CutGood
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateIGI LG22103609
Side View
Table 61.0%Crown 40°Girdle: MED-UNDPavilion 39.7°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,783 NZD|Low: $601 NZD|High: $2,822 NZD|Avg: $1,306 NZD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
November 5, 2026
Retailer 4$601 NZD
Retailer 2$1,039 NZD
Retailer 3$1,098 NZD
MOH London$2,783 NZD

5 data points across 4 retailers

4 retailers$601 NZD to $2,783 NZD

B+
Cheapest Retailer
-
$601 NZD
B+
Retailer 2
-
$1,039 NZD
View
B+
Retailer 3
-
$1,098 NZD
View
Most Expensive
B
MOH London
LG22103609 · Nov 5
$2,783 NZD
£1,232 GBP
View
3 more retailers have this diamond
Prices start from $601 NZDSave up to $2,182 NZD

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.

B+
1.55ct Round
$601 NZD