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Round|Lab Grown|IGI

1.74ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG407939110

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407939110

Diamond specifications and retailer prices

From $1,703 NZD
$960 USD
As of October 31, 2026
Save $7,576 NZD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $9,279 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 LG407939110 or 407939110. Listed at 11 retailers as of October 31, 2026, with prices from $1,703 to $9,279, a $7,576 spread on the same certified stone. MOH London lists it at $9,279. 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 angle32°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407939110
Dimensions7.81 × 7.77 × 4.67 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.81 mm7.77 mm1.74 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407939110
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.0%

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: Oct 31
Current: $9,279 NZD|Low: $1,703 NZD|High: $9,403 NZD|Avg: $4,691 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 2$1,703 NZD
Retailer 7$2,802 NZD
Retailer 10$3,046 NZD
Retailer 12$3,135 NZD
Retailer 8$3,249 NZD
Retailer 5$3,401 NZD
Retailer 13$3,549 NZD
Retailer 3$4,386 NZD
Retailer 9$5,114 NZD
Retailer 6$5,745 NZD
Retailer 11$6,089 NZD
MOH London$9,279 NZD
Retailer 4$9,300 NZD

18 data points across 13 retailers

11 retailers$1,703 NZD to $9,279 NZD

A
Cheapest Retailer
-
$1,703 NZD
$960 USD
B+
Retailer 2
-
$2,802 NZD
$1,579 USD
View
B+
Retailer 3
-
$3,046 NZD
$1,717 USD
View
B+
Retailer 4
-
$3,135 NZD
$1,767 USD
View
Final sale: no returns
Retailer 5
-
$3,249 NZD
$1,831 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$3,249 NZD
$1,831 USD
View
B+
Retailer 7
-
$3,549 NZD
$2,000 USD
View
B
Retailer 8
-
$5,114 NZD
$2,882 USD
View
B
Retailer 9
-
$5,745 NZD
$3,238 USD
View
B
Retailer 10
-
$6,089 NZD
$3,432 USD
View
Most Expensive
B
MOH London
LG407939110 · Nov 1
$9,279 NZD
£4,118 GBP
View
10 more retailers have this diamond
Prices start from $1,703 NZDSave up to $7,576 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
$1,703 NZD