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1.20ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG847634770

Shape and cutting style on the report: Round brilliant

Certificate IGI LG847634770

Diamond specifications and retailer prices

From $582 NZD
As of November 5, 2026
Save $993 NZD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,575 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG847634770 or 847634770. Listed at 7 retailers as of November 4, 2026, with prices from $582 to $1,575, a $993 spread on the same certified stone. MOH London lists it at $1,575. 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

1.20
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847634770
Dimensions6.82 × 6.90 × 4.08 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.82 mm6.90 mm1.20 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG847634770
Side View
Table 63.0%Crown 35.5°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 59.4%

Caratlytics Score

How it works →
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: $1,575 NZD|Low: $557 NZD|High: $1,586 NZD|Avg: $802 NZD|-0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 5$575 NZD
Retailer 3$582 NZD
Retailer 7$615 NZD
Retailer 6$644 NZD
Retailer 2$653 NZD
Retailer 4$854 NZD
MOH London$1,575 NZD

12 data points across 7 retailers

7 retailers$582 NZD to $1,575 NZD

Retailer 1
-
$575 NZD
Price last confirmed 8 days ago
A
Retailer 2
-
$582 NZD
View
B+
Retailer 3
-
$615 NZD
View
A
Retailer 4
-
$644 NZD
View
A
Retailer 5
-
$653 NZD
View
B+
Retailer 6
-
$854 NZD
View
Most Expensive
B
MOH London
LG847634770 · Nov 4
$1,575 NZD
£697 GBP
View
6 more retailers have this diamond
Prices start from $582 NZDSave up to $993 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
1.20ct Round
$582 NZD