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Round|Lab Grown|IGI

1.54ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG779631721

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779631721

Diamond specifications and retailer prices

From $804 NZD
As of November 4, 2026
Save $315 NZD (28%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,017 NZD at MOH London · As of October 25, 2026
View at MOH London

About this 1.54ct lab-grown round diamond

This 1.54ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG779631721 or 779631721. Listed at 11 retailers as of November 4, 2026, with a 39% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.54
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779631721
Dimensions7.45 × 7.51 × 4.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.45 mm7.51 mm1.54 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779631721
Side View
Table 59.0%Crown 33.2°Girdle: THN-MEDPavilion 41.2°Culet: NoneDepth 60.9%

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 4
Current: $2,017 NZD|Low: $350 NZD|High: $2,633 NZD|Avg: $1,388 NZD|-15.4%
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
October 29, 2026
Retailer 14$350 NZD
Retailer 9$610 NZD
Retailer 10$614 NZD
Retailer 2$710 NZD
Retailer 11$747 NZD
Retailer 8$779 NZD
Retailer 12$804 NZD
Retailer 7$1,119 NZD
Retailer 5$1,386 NZD
Retailer 4$1,692 NZD
Retailer 3$1,768 NZD
Retailer 13$1,994 NZD
MOH London$2,017 NZD
Retailer 6$2,633 NZD

36 data points across 14 retailers

11 retailers$804 NZD to $1,119 NZD

Retailer 1
-
$610 NZD
Price last confirmed 10 days ago
Retailer 2
-
$614 NZD
View
Price last confirmed 11 days ago
Retailer 3
-
$710 NZD
View
Price last confirmed 8 days ago
Retailer 4
-
$779 NZD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$804 NZD
View
B+
Retailer 6
-
$1,119 NZD
View
Retailer 7
-
$1,386 NZD
View
Price last confirmed 10 days ago
Retailer 8
-
$1,692 NZD
View
Price last confirmed 9 days ago
Retailer 9
-
$1,768 NZD
View
Price last confirmed 9 days ago
Retailer 10
-
$1,994 NZD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
LG779631721 · Oct 25
$2,017 NZD
£893 GBP
View
Price last confirmed 11 days ago
10 more retailers have this diamond
Prices start from $804 NZDSave up to $315 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
1.54ct Round
$804 NZD