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Round|Lab Grown|IGI

1.59ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG706511921

Shape and cutting style on the report: Round brilliant

Certificate IGI LG706511921

Diamond specifications and retailer prices

From $311 AUD
$218 USD
As of November 1, 2026
Save $1,233 AUD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,544 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.59ct lab-grown round diamond

This 1.59ct 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 LG706511921 or 706511921. Listed at 15 retailers as of November 1, 2026, with prices from $311 to $1,544, a $1,233 spread on the same certified stone. MOH London lists it at $1,544. 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

1.59
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG706511921
Dimensions7.50 × 7.53 × 4.57 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.50 mm7.53 mm1.59 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG706511921
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.8%

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: Nov 1
Current: $1,544 AUD|Low: $291 AUD|High: $1,562 AUD|Avg: $795 AUD|+1.1%
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
Retailer 15
November 3, 2026
Retailer 11$311 AUD
Retailer 4$360 AUD
Retailer 5$385 AUD
Retailer 12$385 AUD
Retailer 9$638 AUD
Retailer 14$659 AUD
Retailer 3$671 AUD
Retailer 2$707 AUD
Retailer 10$707 AUD
Retailer 13$859 AUD
Retailer 8$1,015 AUD
Retailer 7$1,134 AUD
Retailer 15$1,239 AUD
Retailer 6$1,313 AUD
MOH London$1,544 AUD

39 data points across 15 retailers

15 retailers$311 AUD to $1,544 AUD

A
Cheapest Retailer
-
$311 AUD
$218 USD
A
Retailer 2
-
$360 AUD
$252 USD
View
A
Retailer 3
-
$385 AUD
$270 USD
View
Retailer 4
-
$385 AUD
$270 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$638 AUD
€426 EUR
View
B+
Retailer 6
-
$659 AUD
$462 USD
View
A
Retailer 7
-
$671 AUD
$470 USD
View
B+
Retailer 8
-
$707 AUD
£390 GBP
View
A
Retailer 9
-
$707 AUD
£390 GBP
View
B+
Retailer 10
-
$859 AUD
$602 USD
View
B+
Retailer 11
-
$1,015 AUD
$711 USD
View
Retailer 12
-
$1,134 AUD
$795 USD
View
Price last confirmed 15 days ago
B
Retailer 13
-
$1,239 AUD
$868 USD
View
B
Retailer 14
-
$1,313 AUD
$920 USD
View
Most Expensive
B
MOH London
LG706511921 · Nov 1
$1,544 AUD
£852 GBP
View
14 more retailers have this diamond
Prices start from $311 AUDSave up to $1,233 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
1.59ct Round
$311 AUD