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Round|Lab Grown|IGI

1.15ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG480150380

Shape and cutting style on the report: Round brilliant

Certificate IGI LG480150380

Diamond specifications and retailer prices

From $1,167 AUD
$820 USD
As of October 31, 2026
Save $5,649 AUD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,816 AUD at MOH London · As of October 29, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG480150380 or 480150380. Listed at 12 retailers as of October 29, 2026, with prices from $1,167 to $6,816, a $5,649 spread on the same certified stone. MOH London lists it at $6,816. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.3°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG480150380
Dimensions6.85 × 6.87 × 4.10 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
6.85 mm6.87 mm1.15 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG480150380
Side View
Table 60.0%Crown 31.3°Girdle: THN-MEDPavilion 41.6°Culet: NoneDepth 59.7%

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: Oct 31
Current: $6,816 AUD|Low: $1,167 AUD|High: $6,861 AUD|Avg: $3,262 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
October 29, 2026
Retailer 6$1,167 AUD
Retailer 5$1,819 AUD
Retailer 10$2,037 AUD
Retailer 7$2,110 AUD
Retailer 9$2,110 AUD
Retailer 11$2,356 AUD
Retailer 12$2,896 AUD
Retailer 8$3,340 AUD
Retailer 2$3,610 AUD
Retailer 3$3,933 AUD
Retailer 4$6,042 AUD
MOH London$6,816 AUD

19 data points across 12 retailers

12 retailers$1,167 AUD to $6,816 AUD

A
Cheapest Retailer
-
$1,167 AUD
$820 USD
B+
Retailer 2
-
$1,819 AUD
$1,278 USD
View
B+
Retailer 3
-
$1,979 AUD
$1,390 USD
View
B+
Retailer 4
-
$2,037 AUD
$1,431 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,110 AUD
$1,482 USD
View
Retailer 6
-
$2,110 AUD
$1,482 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$2,356 AUD
$1,655 USD
View
B
Retailer 8
-
$3,340 AUD
$2,346 USD
View
B
Retailer 9
-
$3,610 AUD
€2,415 EUR
View
B
Retailer 10
-
$3,933 AUD
$2,763 USD
View
B
Retailer 11
-
$3,956 AUD
$2,779 USD
View
Most Expensive
B
MOH London
LG480150380 · Oct 29
$6,816 AUD
£3,770 GBP
View
11 more retailers have this diamond
Prices start from $1,167 AUDSave up to $5,649 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
$1,167 AUD