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Round|Lab Grown|IGI

1.77ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG589389041

Shape and cutting style on the report: Round brilliant

Certificate IGI LG589389041

Diamond specifications and retailer prices

From $298 AUD
$209 USD
As of October 29, 2026
Save $2,570 AUD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,868 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.77ct lab-grown round diamond

This 1.77ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG589389041 or 589389041. Listed at 10 retailers as of October 29, 2026, with prices from $298 to $2,868, a $2,570 spread on the same certified stone. Do Amore Diamonds lists it at $2,868. 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

1.77
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG589389041
Dimensions7.73 × 7.69 × 4.81 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.73 mm7.69 mm1.77 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG589389041
Side View
Table 56.0%Crown 34.9°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.3%

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: $2,868 AUD|Low: $247 AUD|High: $2,939 AUD|Avg: $1,222 AUD|-2.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 8$298 AUD
Retailer 10$338 AUD
Retailer 6$347 AUD
Retailer 5$636 AUD
Retailer 7$1,121 AUD
Retailer 3$1,194 AUD
Retailer 4$1,314 AUD
Retailer 9$1,513 AUD
Retailer 2$1,647 AUD
Do Amore Diamonds$2,868 AUD

20 data points across 10 retailers

10 retailers$298 AUD to $2,868 AUD

A
Cheapest Retailer
-
$298 AUD
$209 USD
A
Retailer 2
-
$338 AUD
$237 USD
View
Final sale: no returns
A
Retailer 3
-
$347 AUD
$243 USD
View
B+
Retailer 4
-
$636 AUD
$446 USD
View
B+
Retailer 5
-
$1,121 AUD
$786 USD
View
Retailer 6
-
$1,194 AUD
$837 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$1,314 AUD
$921 USD
View
B
Retailer 8
-
$1,513 AUD
$1,060 USD
View
B
Retailer 9
-
$1,647 AUD
£909 GBP
View
Most Expensive
B
Do Amore Diamonds
27-67326A655 · Oct 29
$2,868 AUD
$2,010 USD
View
9 more retailers have this diamond
Prices start from $298 AUDSave up to $2,570 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
1.77ct Round
$298 AUD