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Heart|Lab Grown|IGI

1.82ct H SI1 Heart Lab Grown Diamond

ID • H/SI1 • IGI LG780610475

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG780610475

Diamond specifications and retailer prices

From $341 AUD
As of November 6, 2026
Save $1,348 AUD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,688 AUD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.82ct lab-grown heart diamond

This 1.82ct lab-grown heart sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG780610475 or 780610475. Listed at 14 retailers as of November 3, 2026, with prices from $341 to $1,688, a $1,348 spread on the same certified stone. Brilliant Earth lists it at $1,688. 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

1.82
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780610475
Dimensions7.75 × 7.99 × 4.98 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.75 mm7.99 mm1.82 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780610475
Side View
Table 57.0%Crown 35.8°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 62.3%

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: Nov 6
Current: $1,688 AUD|Low: $327 AUD|High: $2,853 AUD|Avg: $960 AUD|-40.8%
Brilliant Earth
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 6, 2026
Retailer 9$341 AUD
Retailer 4$381 AUD
Retailer 13$396 AUD
Retailer 10$422 AUD
Retailer 14$422 AUD
Retailer 2$553 AUD
Retailer 12$715 AUD
Retailer 3$915 AUD
Retailer 5$930 AUD
Retailer 8$1,129 AUD
Retailer 11$1,358 AUD
Retailer 6$1,434 AUD
Retailer 7$1,687 AUD
Brilliant Earth$1,688 AUD

42 data points across 14 retailers

14 retailers$341 AUD to $1,688 AUD

A
Cheapest Retailer
-
$341 AUD
A
Retailer 2
-
$381 AUD
View
Final sale: no returns
A
Retailer 3
-
$396 AUD
View
A
Retailer 4
-
$422 AUD
View
Retailer 5
-
$422 AUD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$553 AUD
View
B+
Retailer 7
-
$715 AUD
View
A
Retailer 8
-
$915 AUD
View
A
Retailer 9
-
$930 AUD
View
B+
Retailer 10
-
$1,129 AUD
View
B+
Retailer 11
-
$1,358 AUD
View
B+
Retailer 12
-
$1,434 AUD
View
B+
Retailer 13
-
$1,687 AUD
View
Most Expensive
B+
Brilliant Earth
18015576A · Nov 3
$1,688 AUD
$1,160 USD
View
13 more retailers have this diamond
Prices start from $341 AUDSave up to $1,348 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
1.82ct Heart
$341 AUD