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Round|Lab Grown|IGI

1.15ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • IGI LG757504778

Shape and cutting style on the report: Round brilliant

Certificate IGI LG757504778

Diamond specifications and retailer prices

From $527 AUD
As of November 6, 2026
Save $884 AUD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,411 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.15ct lab-grown round diamond

This 1.15ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG757504778 or 757504778. Listed at 7 retailers as of November 2, 2026, with prices from $527 to $1,411, a $884 spread on the same certified stone. MOH London lists it at $1,411. 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

1.15
Carat
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757504778
Dimensions6.74 × 6.72 × 4.16 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
6.74 mm6.72 mm1.15 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757504778
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

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 6
Current: $1,411 AUD|Low: $497 AUD|High: $1,413 AUD|Avg: $697 AUD|+1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$514 AUD
Retailer 2$527 AUD
Retailer 6$539 AUD
Retailer 4$614 AUD
Retailer 3$629 AUD
Retailer 5$654 AUD
MOH London$1,411 AUD

44 data points across 7 retailers

7 retailers$527 AUD to $1,411 AUD

Retailer 1
-
$514 AUD
Price last confirmed 8 days ago
A
Retailer 2
-
$527 AUD
View
A
Retailer 3
-
$539 AUD
View
B+
Retailer 4
-
$614 AUD
View
B+
Retailer 5
-
$629 AUD
View
B+
Retailer 6
-
$654 AUD
View
Most Expensive
B
MOH London
LG757504778 · Nov 2
$1,411 AUD
£778 GBP
View
6 more retailers have this diamond
Prices start from $527 AUDSave up to $884 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
1.15ct Round
$527 AUD