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Heart|Lab Grown|IGI

0.51ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG815693453

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG815693453

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)
18 retailers carry this diamond
Most expensive: $1,615 AUD at MOH London · As of October 29, 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 LG815693453 or 815693453. Listed at 18 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
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815693453
Dimensions5.39 × 5.08 × 3.17 mm
L/W Ratio1.06
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
5.39 mm5.08 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815693453
Side View
Table 53.0%Crown 37.2°Girdle: STK-THKPavilion 37.7°Culet: NoneDepth 58.8%

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: Oct 30
Current: $1,615 AUD|Low: $149 AUD|High: $1,624 AUD|Avg: $437 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
Retailer 14
October 31, 2026
Retailer 13$155 AUD
Retailer 6$174 AUD
Retailer 11$179 AUD
Retailer 12$205 AUD
Retailer 14$205 AUD
Retailer 3$263 AUD
Retailer 9$347 AUD
Retailer 2$357 AUD
Retailer 7$384 AUD
Retailer 8$464 AUD
Retailer 5$520 AUD
Retailer 4$618 AUD
Retailer 10$689 AUD
MOH London$1,615 AUD

42 data points across 14 retailers

18 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
A
Retailer 5
-
$205 AUD
$144 USD
View
A
Retailer 6
-
$219 AUD
HK$1,200 HKD
View
A
Retailer 7
-
$263 AUD
$185 USD
View
A
Retailer 8
-
$347 AUD
ZAR 3,941 ZAR
View
B+
Retailer 9
-
$357 AUD
€239 EUR
View
B+
Retailer 10
-
$384 AUD
£212 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
-
$700 AUD
$492 USD
View
B
Retailer 17
-
$1,285 AUD
$903 USD
View
Most Expensive
MOH London
LG815693453 · Oct 29
$1,615 AUD
£893 GBP
View
Price under review
17 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