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Round|Lab Grown|IGI

1.51ct K VS1 Round Lab Grown Diamond

ID • K/VS1 • IGI LG492123582

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492123582

Diamond specifications and retailer prices

From $3,100 AUD
As of November 5, 2026
Save $3,531 AUD (53%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $9,731 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG492123582 or 492123582. Listed at 10 retailers as of November 3, 2026, with a 114% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
K
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492123582
Dimensions7.41 × 7.43 × 4.54 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Brown This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.41 mm7.43 mm1.51 ctK / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492123582
Side View
Table 53.5%Crown 34.5°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $9,731 AUD|Low: $2,977 AUD|High: $9,889 AUD|Avg: $5,482 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 6$3,100 AUD
Retailer 9$3,373 AUD
Retailer 7$3,597 AUD
Retailer 4$3,836 AUD
Retailer 11$4,541 AUD
Retailer 10$4,944 AUD
Retailer 8$5,618 AUD
Retailer 5$5,637 AUD
Retailer 2$6,631 AUD
Retailer 3$8,048 AUD
MOH London$9,731 AUD

21 data points across 11 retailers

10 retailers$3,100 AUD to $6,631 AUD

B+
Cheapest Retailer
-
$3,100 AUD
B
Retailer 2
-
$3,373 AUD
View
B
Retailer 3
-
$3,597 AUD
View
Retailer 4
-
$3,597 AUD
View
Price last confirmed 26 days ago
B
Retailer 5
-
$3,836 AUD
View
B
Retailer 6
-
$4,944 AUD
View
B
Retailer 7
-
$5,618 AUD
View
B
Retailer 8
-
$5,637 AUD
View
B
Retailer 9
-
$6,631 AUD
View
Most Expensive
MOH London
LG492123582 · Nov 5
$9,731 AUD
£5,364 GBP
View
Price under review
9 more retailers have this diamond
Prices start from $3,100 AUDSave up to $3,531 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.

B+
1.51ct Round
$3,100 AUD