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Round|Lab Grown|IGI

1.27ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG656402458

Shape and cutting style on the report: Round brilliant

Certificate IGI LG656402458

Diamond specifications and retailer prices

From $214 AUD
As of November 5, 2026
Save $1,027 AUD (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,241 AUD at MOH London · As of November 4, 2026
View at MOH London

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 LG656402458 or 656402458. Listed at 20 retailers as of November 4, 2026, with prices from $214 to $1,241, a $1,027 spread on the same certified stone. MOH London lists it at $1,241. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656402458
Dimensions7.08 × 7.01 × 4.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.08 mm7.01 mm1.27 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656402458
Side View
Table 61.0%Crown 32.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.0%

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: Nov 5
Current: $1,241 AUD|Low: $214 AUD|High: $1,259 AUD|Avg: $623 AUD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 10$214 AUD
Retailer 12$266 AUD
Retailer 2$453 AUD
Retailer 3$489 AUD
Retailer 7$510 AUD
Retailer 5$514 AUD
Retailer 4$567 AUD
Retailer 8$657 AUD
Retailer 6$664 AUD
Retailer 11$843 AUD
Retailer 9$903 AUD
MOH London$1,241 AUD

42 data points across 12 retailers

20 retailers$214 AUD to $1,241 AUD

Retailer 1
-
$214 AUD
Price last confirmed 45 days ago
A
Retailer 2
-
$214 AUD
View
Retailer 3
-
$249 AUD
View
Price last confirmed 45 days ago
Retailer 4
-
$263 AUD
View
Price last confirmed 45 days ago
Retailer 5
-
$266 AUD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$266 AUD
View
A
Retailer 7
-
$453 AUD
View
B+
Retailer 8
-
$489 AUD
View
Retailer 9
-
$510 AUD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$514 AUD
View
A
Retailer 11
-
$567 AUD
View
B+
Retailer 12
-
$629 AUD
View
B+
Retailer 13
-
$657 AUD
View
B+
Retailer 14
-
$664 AUD
View
Retailer 15
-
$679 AUD
View
Price last confirmed 47 days ago
B
Retailer 16
-
$843 AUD
View
B
Retailer 17
-
$856 AUD
View
Retailer 18
-
$856 AUD
View
Price last confirmed 46 days ago
B+
Retailer 19
-
$903 AUD
View
Most Expensive
B
MOH London
LG656402458 · Nov 4
$1,241 AUD
£684 GBP
View
19 more retailers have this diamond
Prices start from $214 AUDSave up to $1,027 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
$214 AUD