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Round|Lab Grown|IGI

1.25ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG772661061

Shape and cutting style on the report: Round brilliant

Certificate IGI LG772661061

Diamond specifications and retailer prices

From $243 AUD
As of November 1, 2026
Save $1,169 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,411 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG772661061 or 772661061. Listed at 14 retailers as of November 1, 2026, with prices from $243 to $1,411, a $1,169 spread on the same certified stone. MOH London lists it at $1,411. 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

1.25
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772661061
Dimensions6.94 × 6.91 × 4.23 mm
L/W Ratio1.00
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
6.94 mm6.91 mm1.25 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772661061
Side View
Table 57.0%Crown 33.7°Girdle: MediumPavilion 40.6°Culet: NoneDepth 61.0%

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 1
Current: $1,411 AUD|Low: $234 AUD|High: $1,453 AUD|Avg: $607 AUD|-2.9%
MOH London
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
November 4, 2026
Retailer 12$243 AUD
Retailer 13$273 AUD
Retailer 5$301 AUD
Retailer 11$301 AUD
Retailer 8$517 AUD
Retailer 10$536 AUD
Retailer 3$539 AUD
Retailer 4$570 AUD
Retailer 9$596 AUD
Retailer 14$660 AUD
Retailer 2$693 AUD
Retailer 7$790 AUD
Retailer 6$857 AUD
MOH London$1,411 AUD

34 data points across 14 retailers

14 retailers$243 AUD to $1,411 AUD

A
Cheapest Retailer
-
$243 AUD
A
Retailer 2
-
$273 AUD
View
Final sale: no returns
Retailer 3
-
$301 AUD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$301 AUD
View
A
Retailer 5
-
$517 AUD
View
A
Retailer 6
-
$536 AUD
View
A
Retailer 7
-
$539 AUD
View
A
Retailer 8
-
$570 AUD
View
A
Retailer 9
-
$596 AUD
View
B+
Retailer 10
-
$660 AUD
View
B+
Retailer 11
-
$693 AUD
View
B+
Retailer 12
-
$790 AUD
View
B
Retailer 13
-
$857 AUD
View
Most Expensive
B
MOH London
LG772661061 · Nov 2
$1,411 AUD
£778 GBP
View
13 more retailers have this diamond
Prices start from $243 AUDSave up to $1,169 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
1.25ct Round
$243 AUD