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Round|Lab Grown|IGI

1.29ct H VS1 Round Lab Grown Diamond

ID • H/VS1 • IGI LG818686571

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686571

Diamond specifications and retailer prices

From $304 AUD
As of November 3, 2026
Save $1,093 AUD (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,517 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.29ct lab-grown round diamond

This 1.29ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818686571 or 818686571. Listed at 16 retailers as of November 3, 2026, with a 360% 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

1.29
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686571
Dimensions7.04 × 7.00 × 4.26 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.04 mm7.00 mm1.29 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686571
Side View
Table 59.0%Crown 33.6°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.7%

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 3
Current: $1,517 AUD|Low: $304 AUD|High: $1,528 AUD|Avg: $873 AUD|-0.6%
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
November 4, 2026
Retailer 11$304 AUD
Retailer 12$376 AUD
Retailer 13$646 AUD
Retailer 9$650 AUD
Retailer 5$659 AUD
Retailer 6$684 AUD
Retailer 2$741 AUD
Retailer 10$912 AUD
Retailer 7$921 AUD
Retailer 8$988 AUD
Retailer 4$1,286 AUD
Retailer 3$1,368 AUD
MOH London$1,517 AUD

28 data points across 13 retailers

16 retailers$304 AUD to $1,397 AUD

A
Cheapest Retailer
-
$304 AUD
A
Retailer 2
-
$352 AUD
View
A
Retailer 3
-
$376 AUD
View
Retailer 4
-
$376 AUD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$646 AUD
View
A
Retailer 6
-
$650 AUD
View
A
Retailer 7
-
$659 AUD
View
A
Retailer 8
-
$684 AUD
View
A
Retailer 9
-
$741 AUD
View
B+
Retailer 10
-
$912 AUD
View
A
Retailer 11
-
$921 AUD
View
B+
Retailer 12
-
$988 AUD
View
B+
Retailer 13
-
$1,210 AUD
View
B+
Retailer 14
-
$1,286 AUD
View
B+
Retailer 15
-
$1,397 AUD
View
Most Expensive
MOH London
LG818686571 · Oct 29
$1,517 AUD
£838 GBP
View
Price last confirmed 7 days ago
15 more retailers have this diamond
Prices start from $304 AUDSave up to $1,093 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
1.29ct Round
$304 AUD