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Round|Lab Grown|IGI

1.27ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG769654085

Shape and cutting style on the report: Round brilliant

Certificate IGI LG769654085

Diamond specifications and retailer prices

From $289 AUD
As of November 5, 2026
Save $1,427 AUD (83%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,716 AUD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG769654085 or 769654085. Listed at 22 retailers as of November 4, 2026, with prices from $289 to $1,716, a $1,427 spread on the same certified stone. Reve Diamonds lists it at $1,716. 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

1.27
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG769654085
Dimensions6.99 × 6.95 × 4.26 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
6.99 mm6.95 mm1.27 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG769654085
Side View
Table 59.0%Crown 35.1°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.1%

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: Nov 5
Current: $650 AUD|Low: $287 AUD|High: $1,716 AUD|Avg: $771 AUD|+4.1%
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
Retailer 16
Reve Diamonds
November 6, 2026
Retailer 7$289 AUD
Retailer 15$321 AUD
Retailer 16$336 AUD
Retailer 3$359 AUD
Retailer 4$359 AUD
Retailer 5$621 AUD
Retailer 1$650 AUD
Retailer 12$681 AUD
Retailer 9$693 AUD
Retailer 2$711 AUD
Retailer 14$750 AUD
Retailer 10$886 AUD
Retailer 8$1,151 AUD
Retailer 11$1,156 AUD
Retailer 6$1,227 AUD
Retailer 13$1,674 AUD
Reve Diamonds$1,716 AUD

33 data points across 17 retailers

22 retailers$289 AUD to $1,716 AUD

A
Cheapest Retailer
-
$289 AUD
A
Retailer 2
-
$321 AUD
View
Final sale: no returns
A
Retailer 3
-
$336 AUD
View
A
Retailer 4
-
$359 AUD
View
Retailer 5
-
$359 AUD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$593 AUD
View
B+
Retailer 7
-
$621 AUD
View
B+
Retailer 8
-
$650 AUD
View
B+
Retailer 9
-
$681 AUD
View
B+
Retailer 10
-
$693 AUD
View
Retailer 11
-
$699 AUD
View
Price last confirmed 95 days ago
B+
Retailer 12
-
$711 AUD
View
B+
Retailer 13
-
$750 AUD
View
B+
Retailer 14
-
$886 AUD
View
B+
Retailer 15
-
$886 AUD
View
B
Retailer 16
-
$983 AUD
View
Retailer 17
-
$1,143 AUD
View
Price last confirmed 46 days ago
B
Retailer 18
-
$1,151 AUD
View
B
Retailer 19
-
$1,156 AUD
View
B
Retailer 20
-
$1,227 AUD
View
B
Retailer 21
-
$1,674 AUD
View
Most Expensive
B
Reve Diamonds
219DAB444 · Nov 4
$1,716 AUD
$1,201 USD
View
21 more retailers have this diamond
Prices start from $289 AUDSave up to $1,427 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
$289 AUD