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Round|Lab Grown|IGI

1.27ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG729571877

Shape and cutting style on the report: Round brilliant

Certificate IGI LG729571877

Diamond specifications and retailer prices

From $307 AUD
$216 USD
As of October 29, 2026
Save $2,946 AUD (91%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,254 AUD at Queensmith · As of October 27, 2026
View at Queensmith

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 LG729571877 or 729571877. Listed at 22 retailers as of October 27, 2026, with prices from $307 to $3,254, a $2,946 spread on the same certified stone. Queensmith lists it at $3,254. 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 angle35.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729571877
Dimensions6.91 × 6.99 × 4.29 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
6.91 mm6.99 mm1.27 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729571877
Side View
Table 58.0%Crown 35.7°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A+
Exceptional
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: $705 AUD|Low: $343 AUD|High: $3,502 AUD|Avg: $1,011 AUD|-13.5%
Retailer 1
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
Retailer 15
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Retailer 17
October 29, 2026
Retailer 15$343 AUD
Retailer 16$419 AUD
Retailer 4$512 AUD
Retailer 11$655 AUD
Retailer 9$683 AUD
Retailer 10$693 AUD
Retailer 1$705 AUD
Retailer 3$729 AUD
Retailer 14$989 AUD
Retailer 2$996 AUD
Retailer 8$1,233 AUD
Retailer 17$1,300 AUD
Retailer 6$1,308 AUD
Retailer 12$1,529 AUD
Retailer 13$1,715 AUD
Retailer 5$1,771 AUD
Retailer 7$2,349 AUD

40 data points across 17 retailers

22 retailers$307 AUD to $3,254 AUD

A+
Cheapest Retailer
-
$307 AUD
$216 USD
A
Retailer 2
-
$343 AUD
$241 USD
View
Final sale: no returns
A
Retailer 3
-
$356 AUD
$250 USD
View
A
Retailer 4
-
$381 AUD
$268 USD
View
A
Retailer 5
-
$381 AUD
$268 USD
View
A
Retailer 6
-
$419 AUD
HK$2,300 HKD
View
B+
Retailer 7
-
$512 AUD
$360 USD
View
A
Retailer 8
-
$655 AUD
ZAR 7,430 ZAR
View
A
Retailer 9
-
$693 AUD
€464 EUR
View
A
Retailer 10
-
$705 AUD
£390 GBP
View
A
Retailer 11
-
$729 AUD
$512 USD
View
A
Retailer 12
-
$989 AUD
$695 USD
View
A
Retailer 13
-
$996 AUD
$700 USD
View
A
Retailer 14
-
$1,226 AUD
$861 USD
View
B+
Retailer 15
-
$1,233 AUD
SGD 1,171 SGD
View
B+
Retailer 16
-
$1,300 AUD
$914 USD
View
B+
Retailer 17
-
$1,308 AUD
$919 USD
View
B+
Retailer 18
-
$1,529 AUD
£846 GBP
View
Retailer 19
-
$1,715 AUD
$1,205 USD
View
Price last confirmed 11 days ago
B+
Retailer 20
-
$1,771 AUD
$1,244 USD
View
B+
Retailer 21
-
$2,349 AUD
$1,650 USD
View
Most Expensive
B
Queensmith
LG729571877 · Oct 27
$3,254 AUD
£1,800 GBP
View
21 more retailers have this diamond
Prices start from $307 AUDSave up to $2,946 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
$307 AUD