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Round|Lab Grown|IGI

1.76ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG617445909

Shape and cutting style on the report: Round brilliant

Certificate IGI LG617445909

Diamond specifications and retailer prices

From $345 AUD
$242 USD
As of October 29, 2026
Save $1,377 AUD (80%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,721 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.76ct lab-grown round diamond

This 1.76ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG617445909 or 617445909. Listed at 16 retailers as of October 29, 2026, with prices from $345 to $1,721, a $1,377 spread on the same certified stone. MOH London lists it at $1,721. 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

1.76
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617445909
Dimensions7.84 × 7.81 × 4.71 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.84 mm7.81 mm1.76 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617445909
Side View
Table 58.0%Crown 34.1°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 60.2%

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 29
Current: $1,721 AUD|Low: $296 AUD|High: $1,732 AUD|Avg: $879 AUD|+16.7%
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
Retailer 14
Retailer 15
Retailer 16
October 30, 2026
Retailer 14$345 AUD
Retailer 12$400 AUD
Retailer 4$427 AUD
Retailer 11$427 AUD
Retailer 10$655 AUD
Retailer 7$720 AUD
Retailer 3$741 AUD
Retailer 6$796 AUD
Retailer 9$808 AUD
Retailer 5$905 AUD
Retailer 15$1,189 AUD
Retailer 16$1,372 AUD
Retailer 13$1,378 AUD
Retailer 2$1,580 AUD
Retailer 8$1,620 AUD
MOH London$1,721 AUD

40 data points across 16 retailers

16 retailers$345 AUD to $1,721 AUD

A
Cheapest Retailer
-
$345 AUD
$242 USD
A
Retailer 2
-
$400 AUD
$281 USD
View
A
Retailer 3
-
$427 AUD
$300 USD
View
A
Retailer 4
-
$427 AUD
$300 USD
View
A
Retailer 5
-
$655 AUD
€438 EUR
View
B+
Retailer 6
-
$720 AUD
$506 USD
View
Retailer 7
-
$741 AUD
£410 GBP
View
Price last confirmed 13 days ago
A
Retailer 8
-
$796 AUD
$559 USD
View
B+
Retailer 9
-
$808 AUD
£447 GBP
View
B+
Retailer 10
-
$905 AUD
$636 USD
View
B+
Retailer 11
-
$1,189 AUD
$835 USD
View
B
Retailer 12
-
$1,372 AUD
$964 USD
View
B
Retailer 13
-
$1,378 AUD
$968 USD
View
B
Retailer 14
-
$1,580 AUD
$1,110 USD
View
B
Retailer 15
-
$1,620 AUD
$1,138 USD
View
Most Expensive
B
MOH London
LG617445909 · Oct 29
$1,721 AUD
£952 GBP
View
15 more retailers have this diamond
Prices start from $345 AUDSave up to $1,377 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
1.76ct Round
$345 AUD