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1.74ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG12282716

Shape and cutting style on the report: Round brilliant

Certificate IGI LG12282716

Diamond specifications and retailer prices

From $790 NZD
$445 USD
As of November 1, 2026
Save $2,433 NZD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $3,222 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.74ct lab-grown round diamond

This 1.74ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG12282716 or 12282716. Listed at 7 retailers as of November 1, 2026, with prices from $790 to $3,222, a $2,433 spread on the same certified stone. MOH London lists it at $3,222. 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

1.74
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12282716
Dimensions7.66 × 7.72 × 4.81 mm
L/W Ratio1.01
Cert comments
As Grown - No indications of post-growth treatment. This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process.
Top View
7.66 mm7.72 mm1.74 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG12282716
Side View
Table 58.5%Crown 35.5°Girdle: MED-UNDPavilion 41.5°Culet: NoneDepth 62.4%

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: $3,222 NZD|Low: $790 NZD|High: $3,238 NZD|Avg: $1,842 NZD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 2$790 NZD
Retailer 3$912 NZD
Retailer 5$1,399 NZD
Retailer 7$1,542 NZD
Retailer 4$2,445 NZD
Retailer 6$2,926 NZD
MOH London$3,222 NZD

7 data points across 7 retailers

7 retailers$790 NZD to $3,222 NZD

B+
Cheapest Retailer
-
$790 NZD
$445 USD
A
Retailer 2
-
$912 NZD
$514 USD
View
A
Retailer 3
-
$1,399 NZD
$789 USD
View
A
Retailer 4
-
$1,542 NZD
$869 USD
View
B+
Retailer 5
-
$2,445 NZD
$1,378 USD
View
B+
Retailer 6
-
$2,926 NZD
$1,649 USD
View
Most Expensive
B+
MOH London
LG12282716 · Nov 1
$3,222 NZD
£1,430 GBP
View
6 more retailers have this diamond
Prices start from $790 NZDSave up to $2,433 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
1.74ct Round
$790 NZD