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Heart|Lab Grown|IGI

0.51ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG814619385

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG814619385

Diamond specifications and retailer prices

From $155 AUD
$109 USD
As of October 30, 2026
Save $1,130 AUD (88%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,605 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown heart diamond

This 0.51ct lab-grown heart sits in the half to three-quarter carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG814619385 or 814619385. Listed at 17 retailers as of October 30, 2026, with a 728% 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

0.51
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle34.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814619385
Dimensions5.50 × 5.10 × 3.25 mm
L/W Ratio1.08
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
5.50 mm5.10 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG814619385
Side View
Table 54.0%Crown 34.5°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 59.1%

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: Oct 30
Current: $1,605 AUD|Low: $149 AUD|High: $1,624 AUD|Avg: $426 AUD|-1.0%
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 1, 2026
Retailer 14$155 AUD
Retailer 6$174 AUD
Retailer 13$179 AUD
Retailer 3$205 AUD
Retailer 7$205 AUD
Retailer 4$263 AUD
Retailer 2$349 AUD
Retailer 10$357 AUD
Retailer 9$381 AUD
Retailer 11$464 AUD
Retailer 5$520 AUD
Retailer 8$618 AUD
Retailer 12$689 AUD
MOH London$1,605 AUD

43 data points across 14 retailers

17 retailers$155 AUD to $1,285 AUD

A
Cheapest Retailer
-
$155 AUD
$109 USD
A
Retailer 2
-
$174 AUD
$122 USD
View
Final sale: no returns
A
Retailer 3
-
$179 AUD
$126 USD
View
A
Retailer 4
-
$205 AUD
$144 USD
View
Retailer 5
-
$205 AUD
$144 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$219 AUD
HK$1,200 HKD
View
A
Retailer 7
-
$263 AUD
$185 USD
View
B+
Retailer 8
-
$349 AUD
ZAR 3,962 ZAR
View
B+
Retailer 9
-
$357 AUD
€239 EUR
View
B+
Retailer 10
-
$381 AUD
£211 GBP
View
B+
Retailer 11
-
$464 AUD
£257 GBP
View
B+
Retailer 12
-
$520 AUD
$365 USD
View
B
Retailer 13
-
$545 AUD
SGD 517 SGD
View
B
Retailer 14
-
$618 AUD
$434 USD
View
B
Retailer 15
-
$689 AUD
$484 USD
View
B
Retailer 16
-
$1,285 AUD
$903 USD
View
Most Expensive
MOH London
LG814619385 · Nov 1
$1,605 AUD
£888 GBP
View
Price under review
16 more retailers have this diamond
Prices start from $155 AUDSave up to $1,130 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
0.51ct Heart
$155 AUD