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Round|Lab Grown|IGI

1.26ct E SI1 Round Lab Grown Diamond

EX • E/SI1

Diamond specifications and retailer prices

From $2,425 NZD
$1,363 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: $2,425 NZD at Helzberg Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Helzberg Diamonds

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. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
OriginLab Grown
Grading LabIGI
Dimensions6.89 × 6.95 × 4.27 mm
L/W Ratio1.01
Top View
6.89 mm6.95 mm1.26 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 58.0%CrownGirdlePavilionCuletDepth 62.0%

Caratlytics Score

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C
Average
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Price History

Last verified: Nov 4
Current: $2,425 NZD|Low: $1,412 NZD|High: $2,501 NZD|Avg: $2,191 NZD|-3.1%
Helzberg Diamonds
Retailer 2
September 26, 2026
Retailer 2$1,412 NZD
Helzberg Diamonds$2,425 NZD

3 data points across 2 retailers

1 retailer

C
Helzberg Diamonds
ZXZMOJLKJGIM · Nov 4
$2,425 NZD
$1,363 USD
View

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.

C
1.26ct Round
$2,425 NZD