CaratHunter
Plans
Round|Lab Grown|IGI

1.30ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG786643790

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786643790

Diamond specifications and retailer prices

From $317 NZD
As of November 1, 2026
Save $1,520 NZD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,837 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.3ct lab-grown round diamond

This 1.3ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG786643790 or 786643790. Listed at 13 retailers as of November 1, 2026, with prices from $317 to $1,837, a $1,520 spread on the same certified stone. MOH London lists it at $1,837. 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

1.30
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786643790
Dimensions7.05 × 7.01 × 4.26 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
7.05 mm7.01 mm1.30 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786643790
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.7%

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 1
Current: $1,837 NZD|Low: $304 NZD|High: $1,891 NZD|Avg: $811 NZD|-2.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 8$317 NZD
Retailer 10$354 NZD
Retailer 4$393 NZD
Retailer 6$667 NZD
Retailer 11$696 NZD
Retailer 7$697 NZD
Retailer 3$751 NZD
Retailer 9$840 NZD
Retailer 2$916 NZD
Retailer 5$1,035 NZD
Retailer 12$1,156 NZD
MOH London$1,837 NZD

33 data points across 12 retailers

13 retailers$317 NZD to $1,837 NZD

A
Cheapest Retailer
-
$317 NZD
A
Retailer 2
-
$354 NZD
View
Final sale: no returns
Retailer 3
-
$393 NZD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$667 NZD
View
A
Retailer 5
-
$696 NZD
View
A
Retailer 6
-
$697 NZD
View
A
Retailer 7
-
$751 NZD
View
B+
Retailer 8
-
$840 NZD
View
B+
Retailer 9
-
$916 NZD
View
B
Retailer 10
-
$1,035 NZD
View
B+
Retailer 11
-
$1,156 NZD
View
Retailer 12
-
$1,334 NZD
View
Price last confirmed 11 days ago
Most Expensive
B
MOH London
LG786643790 · Nov 2
$1,837 NZD
£813 GBP
View
12 more retailers have this diamond
Prices start from $317 NZDSave up to $1,520 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
1.30ct Round
$317 NZD