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Round|Lab Grown|IGI

1.27ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG615372660

Shape and cutting style on the report: Round brilliant

Certificate IGI LG615372660

Diamond specifications and retailer prices

From $345 AUD
As of November 6, 2026
Save $1,189 AUD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,534 AUD at MOH London · As of November 1, 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG615372660 or 615372660. Listed at 17 retailers as of November 1, 2026, with prices from $345 to $1,534, a $1,189 spread on the same certified stone. MOH London lists it at $1,534. 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
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG615372660
Dimensions6.90 × 6.87 × 4.31 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
6.90 mm6.87 mm1.27 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG615372660
Side View
Table 57.0%Crown 34.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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 6
Current: $1,534 AUD|Low: $345 AUD|High: $1,553 AUD|Avg: $791 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$345 AUD
Retailer 8$383 AUD
Retailer 9$517 AUD
Retailer 7$608 AUD
Retailer 2$694 AUD
Retailer 3$699 AUD
Retailer 6$757 AUD
Retailer 5$1,234 AUD
Retailer 4$1,383 AUD
MOH London$1,534 AUD

41 data points across 10 retailers

17 retailers$345 AUD to $1,534 AUD

Retailer 1
-
$309 AUD
Price last confirmed 46 days ago
A
Retailer 2
-
$345 AUD
View
Final sale: no returns
Retailer 3
-
$358 AUD
View
Price last confirmed 46 days ago
Retailer 4
-
$378 AUD
View
Price last confirmed 43 days ago
B+
Retailer 5
-
$517 AUD
View
A
Retailer 6
-
$608 AUD
View
B+
Retailer 7
-
$694 AUD
View
B+
Retailer 8
-
$699 AUD
View
B+
Retailer 9
-
$757 AUD
View
B
Retailer 10
-
$1,001 AUD
View
Retailer 11
-
$1,230 AUD
View
Price last confirmed 47 days ago
B
Retailer 12
-
$1,234 AUD
View
B
Retailer 13
-
$1,243 AUD
View
B
Retailer 14
-
$1,307 AUD
View
B
Retailer 15
-
$1,354 AUD
View
B
Retailer 16
-
$1,383 AUD
View
Most Expensive
B
MOH London
LG615372660 · Nov 1
$1,534 AUD
£830 GBP
View
16 more retailers have this diamond
Prices start from $345 AUDSave up to $1,189 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
$345 AUD