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Round|Lab Grown|IGI

1.59ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG788619897

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788619897

Diamond specifications and retailer prices

From $300 AUD
$210 USD
As of November 1, 2026
Save $1,192 AUD (80%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,491 AUD at MOH London · As of November 2, 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 LG788619897 or 788619897. Listed at 17 retailers as of November 1, 2026, with prices from $300 to $1,491, a $1,192 spread on the same certified stone. MOH London lists it at $1,491. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788619897
Dimensions7.60 × 7.56 × 4.56 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.60 mm7.56 mm1.59 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788619897
Side View
Table 59.0%Crown 33.8°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.1%

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: Nov 1
Current: $1,491 AUD|Low: $288 AUD|High: $1,684 AUD|Avg: $824 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
November 3, 2026
Retailer 9$300 AUD
Retailer 10$372 AUD
Retailer 5$620 AUD
Retailer 11$639 AUD
Retailer 6$684 AUD
Retailer 2$686 AUD
Retailer 3$741 AUD
Retailer 4$979 AUD
Retailer 8$1,127 AUD
Retailer 7$1,398 AUD
MOH London$1,491 AUD

43 data points across 11 retailers

17 retailers$300 AUD to $1,491 AUD

A
Cheapest Retailer
-
$300 AUD
$210 USD
A
Retailer 2
-
$348 AUD
$244 USD
View
Retailer 3
-
$372 AUD
$261 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$372 AUD
$261 USD
View
A
Retailer 5
-
$620 AUD
€414 EUR
View
B+
Retailer 6
-
$639 AUD
$448 USD
View
A
Retailer 7
-
$666 AUD
$467 USD
View
A
Retailer 8
-
$684 AUD
£377 GBP
View
A
Retailer 9
-
$686 AUD
£379 GBP
View
A
Retailer 10
-
$741 AUD
$519 USD
View
B+
Retailer 11
-
$979 AUD
$686 USD
View
B
Retailer 12
-
$1,120 AUD
$785 USD
View
Retailer 13
-
$1,127 AUD
$790 USD
View
Price last confirmed 16 days ago
B+
Retailer 14
-
$1,197 AUD
$839 USD
View
B
Retailer 15
-
$1,273 AUD
$892 USD
View
B
Retailer 16
-
$1,398 AUD
$980 USD
View
Most Expensive
B
MOH London
LG788619897 · Nov 2
$1,491 AUD
£823 GBP
View
16 more retailers have this diamond
Prices start from $300 AUDSave up to $1,192 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
$300 AUD