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1.55ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG440014435

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440014435

Diamond specifications and retailer prices

From $1,530 NZD
As of November 5, 2026
Save $6,752 NZD (82%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,282 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440014435 or 440014435. Listed at 12 retailers as of November 5, 2026, with prices from $1,530 to $8,282, a $6,752 spread on the same certified stone. MOH London lists it at $8,282. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440014435
Dimensions7.41 × 7.45 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.41 mm7.45 mm1.55 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440014435
Side View
Table 56.0%Crown 35.9°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 61.4%

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: Nov 5
Current: $8,282 NZD|Low: $1,530 NZD|High: $8,416 NZD|Avg: $3,996 NZD|-0.3%
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 6, 2026
Retailer 6$1,530 NZD
Retailer 7$2,506 NZD
Retailer 10$2,727 NZD
Retailer 12$2,807 NZD
Retailer 8$2,909 NZD
Retailer 13$2,909 NZD
Retailer 3$3,211 NZD
Retailer 5$3,969 NZD
Retailer 9$4,588 NZD
Retailer 2$5,230 NZD
Retailer 4$5,278 NZD
Retailer 11$5,451 NZD
MOH London$8,282 NZD

39 data points across 13 retailers

12 retailers$1,530 NZD to $8,282 NZD

A
Cheapest Retailer
-
$1,530 NZD
B+
Retailer 2
-
$2,506 NZD
View
B+
Retailer 3
-
$2,727 NZD
View
B+
Retailer 4
-
$2,807 NZD
View
Final sale: no returns
B+
Retailer 5
-
$2,909 NZD
View
Retailer 6
-
$2,909 NZD
View
Price last confirmed 25 days ago
B+
Retailer 7
-
$3,211 NZD
View
B
Retailer 8
-
$4,588 NZD
View
B
Retailer 9
-
$5,230 NZD
View
B
Retailer 10
-
$5,278 NZD
View
B
Retailer 11
-
$5,451 NZD
View
Most Expensive
B
MOH London
LG440014435 · Nov 5
$8,282 NZD
£3,666 GBP
View
11 more retailers have this diamond
Prices start from $1,530 NZDSave up to $6,752 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
$1,530 NZD