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Round|Lab Grown|IGI

1.15ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG445039317

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445039317

Diamond specifications and retailer prices

From $943 AUD
As of November 5, 2026
Save $5,051 AUD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,994 AUD at MOH London · As of November 5, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445039317 or 445039317. Listed at 13 retailers as of November 5, 2026, with prices from $943 to $5,994, a $5,051 spread on the same certified stone. MOH London lists it at $5,994. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.4°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445039317
Dimensions6.77 × 6.78 × 4.10 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.77 mm6.78 mm1.15 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445039317
Side View
Table 59.5%Crown 31.4°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 60.5%

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 5
Current: $5,994 AUD|Low: $943 AUD|High: $6,092 AUD|Avg: $2,507 AUD|-0.3%
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
November 6, 2026
Retailer 8$943 AUD
Retailer 9$1,528 AUD
Retailer 14$1,663 AUD
Retailer 13$1,711 AUD
Retailer 10$1,773 AUD
Retailer 12$1,773 AUD
Retailer 4$2,021 AUD
Retailer 2$2,034 AUD
Retailer 5$2,531 AUD
Retailer 11$2,824 AUD
Retailer 7$3,014 AUD
Retailer 3$3,323 AUD
Retailer 6$3,596 AUD
MOH London$5,994 AUD

43 data points across 14 retailers

13 retailers$943 AUD to $5,994 AUD

A
Cheapest Retailer
-
$943 AUD
B+
Retailer 2
-
$1,528 AUD
View
B+
Retailer 3
-
$1,663 AUD
View
B+
Retailer 4
-
$1,711 AUD
View
Final sale: no returns
Retailer 5
-
$1,773 AUD
View
Price last confirmed 25 days ago
B+
Retailer 6
-
$1,773 AUD
View
B+
Retailer 7
-
$2,021 AUD
View
B+
Retailer 8
-
$2,034 AUD
View
B
Retailer 9
-
$2,824 AUD
View
B
Retailer 10
-
$3,014 AUD
View
B
Retailer 11
-
$3,323 AUD
View
B
Retailer 12
-
$3,596 AUD
View
Most Expensive
B
MOH London
LG445039317 · Nov 5
$5,994 AUD
£3,304 GBP
View
12 more retailers have this diamond
Prices start from $943 AUDSave up to $5,051 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
$943 AUD