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Round|Lab Grown|IGI

1.58ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG526280927

Shape and cutting style on the report: Round brilliant

Certificate IGI LG526280927

Diamond specifications and retailer prices

From $285 AUD
$200 USD
As of October 29, 2026
Save $1,371 AUD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,656 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.58ct lab-grown round diamond

This 1.58ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG526280927 or 526280927. Listed at 16 retailers as of October 29, 2026, with prices from $285 to $1,656, a $1,371 spread on the same certified stone. MOH London lists it at $1,656. 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

1.58
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526280927
Dimensions7.46 × 7.43 × 4.60 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.46 mm7.43 mm1.58 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526280927
Side View
Table 56.5%Crown 35.7°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.9%

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: $1,656 AUD|Low: $273 AUD|High: $1,667 AUD|Avg: $690 AUD|+0.5%
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
October 30, 2026
Retailer 10$285 AUD
Retailer 5$319 AUD
Retailer 3$330 AUD
Retailer 11$353 AUD
Retailer 12$481 AUD
Retailer 2$551 AUD
Retailer 7$596 AUD
Retailer 6$643 AUD
Retailer 13$722 AUD
Retailer 4$1,133 AUD
Retailer 9$1,137 AUD
Retailer 8$1,150 AUD
MOH London$1,656 AUD

43 data points across 13 retailers

16 retailers$285 AUD to $1,656 AUD

A
Cheapest Retailer
-
$285 AUD
$200 USD
A
Retailer 2
-
$319 AUD
$224 USD
View
Final sale: no returns
A
Retailer 3
-
$330 AUD
$232 USD
View
A
Retailer 4
-
$353 AUD
$248 USD
View
A
Retailer 5
-
$353 AUD
$248 USD
View
A
Retailer 6
-
$401 AUD
HK$2,200 HKD
View
B+
Retailer 7
-
$481 AUD
$338 USD
View
A
Retailer 8
-
$551 AUD
£305 GBP
View
A
Retailer 9
-
$596 AUD
€399 EUR
View
A
Retailer 10
-
$643 AUD
£356 GBP
View
A
Retailer 11
-
$722 AUD
$507 USD
View
Retailer 12
-
$1,068 AUD
$750 USD
View
Price last confirmed 50 days ago
B+
Retailer 13
-
$1,133 AUD
$796 USD
View
B
Retailer 14
-
$1,137 AUD
$799 USD
View
B+
Retailer 15
-
$1,150 AUD
SGD 1,092 SGD
View
Most Expensive
B
MOH London
LG526280927 · Oct 29
$1,656 AUD
£916 GBP
View
15 more retailers have this diamond
Prices start from $285 AUDSave up to $1,371 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
1.58ct Round
$285 AUD