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Heart|Lab Grown|IGI

0.51ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG815693961

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG815693961

Diamond specifications and retailer prices

From $193 NZD
$109 USD
As of October 30, 2026
Save $1,409 NZD (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,001 NZD 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 LG815693961 or 815693961. 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
SymmetryVery Good
FluorescenceNone
Crown angle38.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815693961
Dimensions5.39 × 5.00 × 3.15 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
5.39 mm5.00 mm0.51 ctD / VS1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG815693961
Side View
Table 59.0%Crown 38.1°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 58.4%

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: $2,001 NZD|Low: $186 NZD|High: $2,024 NZD|Avg: $545 NZD
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$193 NZD
Retailer 6$216 NZD
Retailer 13$224 NZD
Retailer 3$255 NZD
Retailer 7$255 NZD
Retailer 4$328 NZD
Retailer 2$435 NZD
Retailer 10$445 NZD
Retailer 9$474 NZD
Retailer 11$578 NZD
Retailer 5$648 NZD
Retailer 8$770 NZD
Retailer 12$859 NZD
MOH London$2,001 NZD

43 data points across 14 retailers

18 retailers$193 NZD to $1,602 NZD

A
Cheapest Retailer
-
$193 NZD
$109 USD
A
Retailer 2
-
$216 NZD
$122 USD
View
Final sale: no returns
A
Retailer 3
-
$224 NZD
$126 USD
View
A
Retailer 4
-
$255 NZD
$144 USD
View
Retailer 5
-
$255 NZD
$144 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$273 NZD
HK$1,200 HKD
View
A
Retailer 7
-
$328 NZD
$185 USD
View
A
Retailer 8
-
$435 NZD
ZAR 3,962 ZAR
View
B+
Retailer 9
-
$445 NZD
€239 EUR
View
B+
Retailer 10
-
$474 NZD
£211 GBP
View
B+
Retailer 11
-
$578 NZD
£257 GBP
View
B+
Retailer 12
-
$648 NZD
$365 USD
View
B+
Retailer 13
-
$679 NZD
SGD 517 SGD
View
B
Retailer 14
-
$770 NZD
$434 USD
View
B
Retailer 15
-
$859 NZD
$484 USD
View
B
Retailer 16
-
$873 NZD
$492 USD
View
B
Retailer 17
-
$1,602 NZD
$903 USD
View
Most Expensive
MOH London
LG815693961 · Nov 1
$2,001 NZD
£888 GBP
View
Price under review
17 more retailers have this diamond
Prices start from $193 NZDSave up to $1,409 NZD

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
$193 NZD