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Round|Lab Grown|IGI

1.39ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG561275075

Shape and cutting style on the report: Round brilliant

Certificate IGI LG561275075

Diamond specifications and retailer prices

From $1,354 AUD
$951 USD
As of October 29, 2026
Save $1,160 AUD (46%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,415 AUD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

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 top-tier cut grade and certified by IGI LG561275075 or 561275075. Listed at 11 retailers as of October 28, 2026, with a 86% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.39
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG561275075
Dimensions7.20 × 7.17 × 4.35 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
7.20 mm7.17 mm1.39 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG561275075
Side View
Table 58.5%Crown 34.4°GirdlePavilion 40.6°Culet: NoneDepth 60.5%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,412 AUD|Low: $1,300 AUD|High: $5,398 AUD|Avg: $2,733 AUD|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 6$1,354 AUD
Retailer 7$1,570 AUD
Retailer 3$1,822 AUD
Retailer 1$2,412 AUD
Retailer 8$2,514 AUD
Retailer 4$3,287 AUD
Retailer 5$3,385 AUD
Retailer 2$5,354 AUD

40 data points across 8 retailers

11 retailers$1,354 AUD to $2,514 AUD

B
Cheapest Retailer
-
$1,354 AUD
$951 USD
B
Retailer 2
-
$1,473 AUD
$1,035 USD
View
Retailer 3
-
$1,570 AUD
$1,103 USD
View
Price last confirmed 17 days ago
B
Retailer 4
-
$1,570 AUD
$1,103 USD
View
B
Retailer 5
-
$1,822 AUD
$1,280 USD
View
B
Retailer 6
-
$2,412 AUD
£1,334 GBP
View
B
Retailer 7
-
$2,514 AUD
$1,766 USD
View
Retailer 8
-
$3,287 AUD
£1,818 GBP
View
Price under review
Retailer 9
-
$3,385 AUD
$2,378 USD
View
Price under review
Most Expensive
NZ Jewellers
c2689184-07c3-4958-917e-49326df01f5e · Oct 27
$4,415 AUD
$3,102 USD
View
Price under review
9 more retailers have this diamond
Prices start from $1,354 AUDSave up to $1,160 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.

B
1.39ct Round
$1,354 AUD