CaratHunter
Plans
Round|Lab Grown|IGI

1.25ct I VS1 Round Lab Grown Diamond

ID • I/VS1 • IGI LG821638274

Shape and cutting style on the report: Round brilliant

Certificate IGI LG821638274

Diamond specifications and retailer prices

From $421 AUD
As of November 4, 2026
Save $990 AUD (70%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,410 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG821638274 or 821638274. Listed at 6 retailers as of November 2, 2026, with prices from $421 to $1,410, a $990 spread on the same certified stone. MOH London lists it at $1,410. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
I
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821638274
Dimensions6.93 × 6.90 × 4.21 mm
L/W Ratio1.00
Girdle conditionFaceted
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
6.93 mm6.90 mm1.25 ctI / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821638274
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.8%

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 4
Current: $1,410 AUD|Low: $421 AUD|High: $1,428 AUD|Avg: $883 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 4, 2026
Retailer 3$421 AUD
Retailer 4$659 AUD
Retailer 2$691 AUD
Retailer 5$961 AUD
Retailer 6$1,048 AUD
MOH London$1,410 AUD

15 data points across 6 retailers

6 retailers$421 AUD to $1,410 AUD

B+
Cheapest Retailer
-
$421 AUD
A
Retailer 2
-
$659 AUD
View
A
Retailer 3
-
$691 AUD
View
B+
Retailer 4
-
$961 AUD
View
B+
Retailer 5
-
$1,048 AUD
View
Most Expensive
B+
MOH London
LG821638274 · Nov 2
$1,410 AUD
£779 GBP
View
5 more retailers have this diamond
Prices start from $421 AUDSave up to $990 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
$421 AUD