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Heart|Lab Grown|IGI

1.28ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG831661558

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831661558

Diamond specifications and retailer prices

From $273 AUD
$192 USD
As of November 2, 2026
Save $1,314 AUD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,587 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831661558 or 831661558. Listed at 14 retailers as of November 1, 2026, with prices from $273 to $1,587, a $1,314 spread on the same certified stone. MOH London lists it at $1,587. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831661558
Dimensions7.50 × 6.56 × 4.46 mm
L/W Ratio1.14
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.50 mm6.56 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831661558
Side View
Table 62.0%Crown 34.3°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 59.5%

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 2
Current: $1,587 AUD|Low: $273 AUD|High: $1,687 AUD|Avg: $687 AUD|-4.8%
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 2, 2026
Retailer 14$273 AUD
Retailer 3$305 AUD
Retailer 13$317 AUD
Retailer 10$339 AUD
Retailer 5$346 AUD
Retailer 12$458 AUD
Retailer 8$586 AUD
Retailer 7$618 AUD
Retailer 6$725 AUD
Retailer 2$828 AUD
Retailer 11$1,090 AUD
Retailer 9$1,095 AUD
Retailer 4$1,168 AUD
MOH London$1,587 AUD

44 data points across 14 retailers

14 retailers$273 AUD to $1,587 AUD

A
Cheapest Retailer
-
$273 AUD
$192 USD
A
Retailer 2
-
$305 AUD
$214 USD
View
Final sale: no returns
A
Retailer 3
-
$317 AUD
$223 USD
View
A
Retailer 4
-
$339 AUD
$238 USD
View
Retailer 5
-
$346 AUD
$243 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$458 AUD
$322 USD
View
A
Retailer 7
-
$586 AUD
ZAR 6,649 ZAR
View
A
Retailer 8
-
$618 AUD
£342 GBP
View
B+
Retailer 9
-
$725 AUD
$509 USD
View
B+
Retailer 10
-
$828 AUD
View
B+
Retailer 11
-
$1,090 AUD
$766 USD
View
B+
Retailer 12
-
$1,095 AUD
$769 USD
View
B
Retailer 13
-
$1,168 AUD
$820 USD
View
Most Expensive
B
MOH London
LG831661558 · Nov 1
$1,587 AUD
£878 GBP
View
13 more retailers have this diamond
Prices start from $273 AUDSave up to $1,314 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
1.28ct Heart
$273 AUD