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Round|Lab Grown|IGI

1.39ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG710541146

Shape and cutting style on the report: Round brilliant

Certificate IGI LG710541146

Diamond specifications and retailer prices

From $251 AUD
$176 USD
As of October 29, 2026
Save $1,301 AUD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,552 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.39ct lab-grown round diamond

This 1.39ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG710541146 or 710541146. Listed at 13 retailers as of October 29, 2026, with prices from $251 to $1,552, a $1,301 spread on the same certified stone. Brilliant Earth lists it at $1,552. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.39
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG710541146
Dimensions7.10 × 7.03 × 4.42 mm
L/W Ratio1.01
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
7.10 mm7.03 mm1.39 ctE / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG710541146
Side View
Table 61.0%Crown 38.7°Girdle: MediumPavilion 41.1°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,552 AUD|Low: $251 AUD|High: $1,608 AUD|Avg: $712 AUD|-2.7%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 5$251 AUD
Retailer 6$280 AUD
Retailer 4$322 AUD
Retailer 7$532 AUD
Retailer 10$552 AUD
Retailer 2$556 AUD
Retailer 9$670 AUD
Retailer 8$673 AUD
Retailer 12$726 AUD
Retailer 3$844 AUD
Retailer 11$1,504 AUD
Brilliant Earth$1,552 AUD

39 data points across 12 retailers

13 retailers$251 AUD to $1,552 AUD

A
Cheapest Retailer
-
$251 AUD
$176 USD
A
Retailer 2
-
$280 AUD
$197 USD
View
Final sale: no returns
A
Retailer 3
-
$322 AUD
$226 USD
View
A
Retailer 4
-
$532 AUD
€356 EUR
View
B+
Retailer 5
-
$552 AUD
$388 USD
View
B+
Retailer 6
-
$556 AUD
£307 GBP
View
B+
Retailer 7
-
$670 AUD
$471 USD
View
B+
Retailer 8
-
$673 AUD
$473 USD
View
B+
Retailer 9
-
$726 AUD
$510 USD
View
B
Retailer 10
-
$844 AUD
$593 USD
View
Retailer 11
-
$854 AUD
$600 USD
View
Price last confirmed 45 days ago
B
Retailer 12
-
$1,504 AUD
£832 GBP
View
Most Expensive
B
Brilliant Earth
17097807A · Oct 29
$1,552 AUD
$1,090 USD
View
12 more retailers have this diamond
Prices start from $251 AUDSave up to $1,301 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
1.39ct Round
$251 AUD