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Heart|Lab Grown|IGI

0.53ct D SI1 Heart Lab Grown Diamond

EX • D/SI1 • IGI LG764609945

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG764609945

Diamond specifications and retailer prices

From $388 NZD
$218 USD
As of October 23, 2026
Save $146 NZD (27%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,346 NZD at MOH London · As of October 21, 2026
View at MOH London

About this 0.53ct lab-grown heart diamond

This 0.53ct lab-grown heart sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG764609945 or 764609945. Listed at 12 retailers as of October 23, 2026, with a 38% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.8°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG764609945
Dimensions5.00 × 5.57 × 3.15 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizeNone
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
5.00 mm5.57 mm0.53 ctD / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG764609945
Side View
Table 59.0%Crown 34.8°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 56.6%

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 23
Current: $1,346 NZD|Low: $141 NZD|High: $1,355 NZD|Avg: $476 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 22, 2026
Retailer 7$146 NZD
Retailer 12$171 NZD
Retailer 3$194 NZD
Retailer 9$194 NZD
Retailer 2$307 NZD
Retailer 5$388 NZD
Retailer 11$395 NZD
Retailer 6$466 NZD
Retailer 8$534 NZD
Retailer 10$586 NZD
Retailer 4$734 NZD
MOH London$1,346 NZD

35 data points across 12 retailers

12 retailers$388 NZD to $534 NZD

A
Retailer 1
-
$146 NZD
$82 USD
Price last confirmed 7 days ago
A
Retailer 2
-
$171 NZD
$96 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$194 NZD
$109 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$194 NZD
$109 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$307 NZD
£136 GBP
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$388 NZD
$218 USD
View
B+
Retailer 7
-
$395 NZD
$222 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$466 NZD
£206 GBP
View
B+
Retailer 9
-
$534 NZD
$300 USD
View
B
Retailer 10
-
$586 NZD
$329 USD
View
Price last confirmed 7 days ago
B
Retailer 11
-
$734 NZD
$412 USD
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
LG764609945 · Oct 21
$1,346 NZD
£595 GBP
View
Price last confirmed 8 days ago
11 more retailers have this diamond
Prices start from $388 NZDSave up to $146 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
0.53ct Heart
$388 NZD