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1.26ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG758581221

Shape and cutting style on the report: Round brilliant

Certificate IGI LG758581221

Diamond specifications and retailer prices

From $292 NZD
As of November 1, 2026
Save $1,400 NZD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,692 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.26ct lab-grown round diamond

This 1.26ct 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 LG758581221 or 758581221. Listed at 11 retailers as of November 1, 2026, with prices from $292 to $1,692, a $1,400 spread on the same certified stone. MOH London lists it at $1,692. 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

1.26
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758581221
Dimensions6.87 × 6.84 × 4.30 mm
L/W Ratio1.00
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
6.87 mm6.84 mm1.26 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758581221
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

Caratlytics Score

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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: $1,692 NZD|Low: $290 NZD|High: $1,771 NZD|Avg: $737 NZD|-4.2%
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 2, 2026
Retailer 7$292 NZD
Retailer 8$327 NZD
Retailer 12$374 NZD
Retailer 2$623 NZD
Retailer 5$633 NZD
Retailer 11$651 NZD
Retailer 10$706 NZD
Retailer 9$809 NZD
Retailer 4$845 NZD
Retailer 6$932 NZD
Retailer 3$1,050 NZD
MOH London$1,692 NZD

34 data points across 12 retailers

11 retailers$292 NZD to $1,692 NZD

A
Cheapest Retailer
-
$292 NZD
Retailer 2
-
$374 NZD
View
Price last confirmed 12 days ago
A
Retailer 3
-
$623 NZD
View
A
Retailer 4
-
$633 NZD
View
B+
Retailer 5
-
$651 NZD
View
A
Retailer 6
-
$706 NZD
View
B+
Retailer 7
-
$809 NZD
View
Retailer 8
-
$845 NZD
View
Price last confirmed 40 days ago
B+
Retailer 9
-
$932 NZD
View
B
Retailer 10
-
$1,050 NZD
View
Most Expensive
B
MOH London
LG758581221 · Nov 2
$1,692 NZD
£749 GBP
View
10 more retailers have this diamond
Prices start from $292 NZDSave up to $1,400 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
1.26ct Round
$292 NZD