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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 $1,367 AUD
$960 USD
As of October 31, 2026
Save $6,088 AUD (82%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,454 AUD at MOH London · As of October 27, 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 27, 2026, with prices from $1,367 to $7,454, a $6,088 spread on the same certified stone. MOH London lists it at $7,454. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $7,454 AUD|Low: $1,367 AUD|High: $7,545 AUD|Avg: $3,765 AUD|+0.1%
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
October 30, 2026
Retailer 2$1,367 AUD
Retailer 7$2,248 AUD
Retailer 10$2,444 AUD
Retailer 12$2,516 AUD
Retailer 8$2,607 AUD
Retailer 5$2,729 AUD
Retailer 13$2,847 AUD
Retailer 3$3,519 AUD
Retailer 9$4,103 AUD
Retailer 6$4,610 AUD
Retailer 11$4,886 AUD
MOH London$7,454 AUD
Retailer 4$7,462 AUD

17 data points across 13 retailers

11 retailers$1,367 AUD to $7,454 AUD

A
Cheapest Retailer
-
$1,367 AUD
$960 USD
B+
Retailer 2
-
$2,248 AUD
$1,579 USD
View
B+
Retailer 3
-
$2,444 AUD
$1,717 USD
View
B+
Retailer 4
-
$2,516 AUD
$1,767 USD
View
Final sale: no returns
Retailer 5
-
$2,607 AUD
$1,831 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
$2,607 AUD
$1,831 USD
View
B+
Retailer 7
-
$2,847 AUD
$2,000 USD
View
B
Retailer 8
-
$4,103 AUD
$2,882 USD
View
B
Retailer 9
-
$4,610 AUD
$3,238 USD
View
B
Retailer 10
-
$4,886 AUD
$3,432 USD
View
Most Expensive
B
MOH London
LG407939110 · Oct 27
$7,454 AUD
£4,123 GBP
View
10 more retailers have this diamond
Prices start from $1,367 AUDSave up to $6,088 AUD

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
$1,367 AUD