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1.55ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG544272235

Shape and cutting style on the report: Round brilliant

Certificate IGI LG544272235

Diamond specifications and retailer prices

From $425 NZD
As of November 5, 2026
Save $1,678 NZD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,103 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG544272235 or 544272235. Listed at 14 retailers as of November 5, 2026, with prices from $425 to $2,103, a $1,678 spread on the same certified stone. MOH London lists it at $2,103. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544272235
Dimensions7.42 × 7.37 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.42 mm7.37 mm1.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG544272235
Side View
Table 58.5%Crown 35.4°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.5%

Caratlytics Score

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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: Nov 5
Current: $2,103 NZD|Low: $425 NZD|High: $2,322 NZD|Avg: $1,055 NZD|-9.4%
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
Retailer 14
November 6, 2026
Retailer 11$425 NZD
Retailer 10$493 NZD
Retailer 8$527 NZD
Retailer 12$527 NZD
Retailer 2$815 NZD
Retailer 13$840 NZD
Retailer 6$854 NZD
Retailer 3$888 NZD
Retailer 7$984 NZD
Retailer 14$1,110 NZD
Retailer 9$1,692 NZD
Retailer 4$1,699 NZD
Retailer 5$1,784 NZD
MOH London$2,103 NZD

42 data points across 14 retailers

14 retailers$425 NZD to $2,103 NZD

A
Cheapest Retailer
-
$425 NZD
A
Retailer 2
-
$493 NZD
View
A
Retailer 3
-
$518 NZD
View
Final sale: no returns
A
Retailer 4
-
$527 NZD
View
Retailer 5
-
$527 NZD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$815 NZD
View
A
Retailer 7
-
$840 NZD
View
A
Retailer 8
-
$888 NZD
View
A
Retailer 9
-
$984 NZD
View
B+
Retailer 10
-
$1,110 NZD
View
B
Retailer 11
-
$1,692 NZD
View
B
Retailer 12
-
$1,699 NZD
View
B
Retailer 13
-
$1,784 NZD
View
Most Expensive
B
MOH London
LG544272235 · Nov 5
$2,103 NZD
£931 GBP
View
13 more retailers have this diamond
Prices start from $425 NZDSave up to $1,678 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.

A
1.55ct Round
$425 NZD