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Heart|Lab Grown|IGI

0.51ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG831609127

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831609127

Diamond specifications and retailer prices

From $196 AUD
$138 USD
As of October 25, 2026
Save $1,342 AUD (87%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,539 AUD at MOH London · As of October 26, 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 LG831609127 or 831609127. Listed at 19 retailers as of October 25, 2026, with prices from $196 to $1,539, a $1,342 spread on the same certified stone. MOH London lists it at $1,539. 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
SymmetryVery Good
FluorescenceNone
Crown angle33.1°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831609127
Dimensions5.51 × 5.49 × 2.90 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.51 mm5.49 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG831609127
Side View
Table 63.0%Crown 33.1°Girdle: MED-THKPavilion 37.2°Culet: NoneDepth 52.6%

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 25
Current: $1,539 AUD|Low: $145 AUD|High: $1,602 AUD|Avg: $512 AUD|-2.7%
MOH London
Retailer 2
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Retailer 21
October 31, 2026
Retailer 7$148 AUD
Retailer 5$165 AUD
Retailer 4$172 AUD
Retailer 18$196 AUD
Retailer 14$219 AUD
Retailer 11$285 AUD
Retailer 2$333 AUD
Retailer 9$337 AUD
Retailer 16$360 AUD
Retailer 20$369 AUD
Retailer 13$420 AUD
Retailer 17$502 AUD
Retailer 3$512 AUD
Retailer 6$517 AUD
Retailer 15$525 AUD
Retailer 10$584 AUD
Retailer 19$592 AUD
Retailer 8$675 AUD
Retailer 12$998 AUD
Retailer 21$1,264 AUD
MOH London$1,539 AUD

35 data points across 21 retailers

19 retailers$196 AUD to $1,539 AUD

Retailer 1
-
$148 AUD
$104 USD
Price last confirmed 8 days ago
Retailer 2
-
$172 AUD
$121 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$196 AUD
$138 USD
View
A
Retailer 4
-
$219 AUD
HK$1,200 HKD
View
A
Retailer 5
-
$333 AUD
€223 EUR
View
Retailer 6
-
$337 AUD
ZAR 3,829 ZAR
View
Price last confirmed 19 days ago
B+
Retailer 7
-
$360 AUD
£199 GBP
View
Retailer 8
-
$369 AUD
$259 USD
View
Price last confirmed 6 days ago
B+
Retailer 9
-
$420 AUD
$295 USD
View
B+
Retailer 10
-
$502 AUD
£278 GBP
View
B+
Retailer 11
-
$512 AUD
$360 USD
View
B+
Retailer 12
-
$517 AUD
SGD 491 SGD
View
B+
Retailer 13
-
$525 AUD
$369 USD
View
B
Retailer 14
-
$584 AUD
$410 USD
View
B
Retailer 15
-
$592 AUD
$416 USD
View
B
Retailer 16
-
$675 AUD
$474 USD
View
Retailer 17
-
$998 AUD
£552 GBP
View
Price last confirmed 19 days ago
B
Retailer 18
-
$1,264 AUD
$888 USD
View
Most Expensive
B
MOH London
LG831609127 · Oct 26
$1,539 AUD
£851 GBP
View
18 more retailers have this diamond
Prices start from $196 AUDSave up to $1,342 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
$196 AUD