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Round|Lab Grown|IGI

1.27ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG731501040

Shape and cutting style on the report: Round brilliant

Certificate IGI LG731501040

Diamond specifications and retailer prices

From $303 AUD
$213 USD
As of October 30, 2026
Save $1,356 AUD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,729 AUD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG731501040 or 731501040. Listed at 20 retailers as of October 30, 2026, with a 447% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG731501040
Dimensions6.93 × 6.89 × 4.31 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
6.93 mm6.89 mm1.27 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG731501040
Side View
Table 57.0%Crown 35.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.4%

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 30
Current: $1,729 AUD|Low: $303 AUD|High: $1,744 AUD|Avg: $874 AUD|-0.8%
Rare Carat
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
October 30, 2026
Retailer 13$303 AUD
Retailer 6$356 AUD
Retailer 11$470 AUD
Retailer 2$546 AUD
Retailer 9$579 AUD
Retailer 7$613 AUD
Retailer 3$690 AUD
Retailer 10$823 AUD
Retailer 4$985 AUD
Retailer 12$1,089 AUD
Retailer 5$1,161 AUD
Retailer 8$1,585 AUD
Retailer 14$1,659 AUD
Rare Carat$1,729 AUD

41 data points across 14 retailers

20 retailers$303 AUD to $1,659 AUD

Retailer 1
-
$262 AUD
$184 USD
Price last confirmed 22 days ago
Retailer 2
-
$290 AUD
$204 USD
View
Price last confirmed 37 days ago
A
Retailer 3
-
$303 AUD
$213 USD
View
Final sale: no returns
Retailer 4
-
$337 AUD
$237 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$337 AUD
$237 USD
View
Price last confirmed 27 days ago
Retailer 6
-
$356 AUD
$250 USD
View
Price last confirmed 38 days ago
B+
Retailer 7
-
$470 AUD
$330 USD
View
A
Retailer 8
-
$546 AUD
£302 GBP
View
A
Retailer 9
-
$579 AUD
ZAR 6,577 ZAR
View
A
Retailer 10
-
$613 AUD
£339 GBP
View
A
Retailer 11
-
$690 AUD
$485 USD
View
A
Retailer 12
-
$823 AUD
View
A
Retailer 13
-
$985 AUD
$692 USD
View
Retailer 14
-
$1,085 AUD
$762 USD
View
Price last confirmed 26 days ago
A
Retailer 15
-
$1,089 AUD
$765 USD
View
Retailer 16
-
$1,160 AUD
$815 USD
View
Price last confirmed 39 days ago
B+
Retailer 17
-
$1,161 AUD
$816 USD
View
B+
Retailer 18
-
$1,585 AUD
£877 GBP
View
B+
Retailer 19
-
$1,659 AUD
$1,166 USD
View
Most Expensive
Rare Carat
GD17588_l_731501040 · Oct 18
$1,729 AUD
$1,215 USD
View
Price last confirmed 12 days ago
19 more retailers have this diamond
Prices start from $303 AUDSave up to $1,356 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
1.27ct Round
$303 AUD