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Round|Lab Grown|IGI

1.71ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG559281314

Shape and cutting style on the report: Round brilliant

Certificate IGI LG559281314

Diamond specifications and retailer prices

From $289 AUD
$203 USD
As of October 29, 2026
Save $1,298 AUD (82%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,587 AUD at MOH London · As of October 28, 2026
View at MOH London

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG559281314 or 559281314. Listed at 9 retailers as of October 28, 2026, with prices from $289 to $1,587, a $1,298 spread on the same certified stone. MOH London lists it at $1,587. 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

1.71
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559281314
Dimensions7.72 × 7.69 × 4.69 mm
L/W Ratio1.00
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
7.72 mm7.69 mm1.71 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559281314
Side View
Table 56.5%Crown 33.7°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 60.9%

Caratlytics Score

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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: $1,587 AUD|Low: $239 AUD|High: $2,078 AUD|Avg: $951 AUD|-2.1%
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
Retailer 14
October 29, 2026
Retailer 12$289 AUD
Retailer 13$327 AUD
Retailer 11$336 AUD
Retailer 10$619 AUD
Retailer 2$687 AUD
Retailer 4$769 AUD
Retailer 5$857 AUD
Retailer 14$1,004 AUD
Retailer 3$1,122 AUD
Retailer 8$1,157 AUD
Retailer 7$1,246 AUD
Retailer 9$1,273 AUD
MOH London$1,587 AUD
Retailer 6$2,078 AUD

38 data points across 14 retailers

9 retailers$289 AUD to $1,587 AUD

A
Cheapest Retailer
-
$289 AUD
$203 USD
A
Retailer 2
-
$327 AUD
$230 USD
View
Final sale: no returns
A
Retailer 3
-
$336 AUD
$236 USD
View
B+
Retailer 4
-
$619 AUD
$435 USD
View
A
Retailer 5
-
$687 AUD
£380 GBP
View
B
Retailer 6
-
$1,157 AUD
$813 USD
View
Retailer 7
-
$1,246 AUD
$875 USD
View
Price last confirmed 10 days ago
B+
Retailer 8
-
$1,273 AUD
$894 USD
View
Most Expensive
B
MOH London
LG559281314 · Oct 26
$1,587 AUD
£878 GBP
View
8 more retailers have this diamond
Prices start from $289 AUDSave up to $1,298 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
1.71ct Round
$289 AUD