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Heart|Lab Grown|IGI

0.51ct E IF Heart Lab Grown Diamond

VG • E/IF • IGI LG840620855

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG840620855

Diamond specifications and retailer prices

From $259 AUD
$182 USD
As of October 30, 2026
Save $1,359 AUD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,618 AUD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.51ct lab-grown heart diamond

This 0.51ct lab-grown heart sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG840620855 or 840620855. Listed at 14 retailers as of October 30, 2026, with prices from $259 to $1,618, a $1,359 spread on the same certified stone. Reve Diamonds lists it at $1,618. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840620855
Dimensions5.05 × 5.54 × 3.11 mm
L/W Ratio1.10
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
5.05 mm5.54 mm0.51 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840620855
Side View
Table 61.0%Crown 35.9°Girdle: THN-STKPavilion 38.7°Culet: NoneDepth 56.1%

Caratlytics Score

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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 30
Current: $576 AUD|Low: $259 AUD|High: $1,618 AUD|Avg: $690 AUD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
October 31, 2026
Retailer 3$259 AUD
Retailer 10$289 AUD
Retailer 12$300 AUD
Retailer 11$453 AUD
Retailer 2$493 AUD
Retailer 8$555 AUD
Retailer 1$576 AUD
Retailer 13$581 AUD
Retailer 4$673 AUD
Retailer 7$712 AUD
Retailer 6$1,092 AUD
Retailer 5$1,111 AUD
Retailer 9$1,511 AUD
Reve Diamonds$1,618 AUD

6 data points across 14 retailers

14 retailers$259 AUD to $1,618 AUD

A
Cheapest Retailer
-
$259 AUD
$182 USD
A
Retailer 2
-
$289 AUD
$203 USD
View
Final sale: no returns
A
Retailer 3
-
$300 AUD
$211 USD
View
A
Retailer 4
-
$453 AUD
$318 USD
View
B+
Retailer 5
-
$493 AUD
$346 USD
View
B+
Retailer 6
-
$555 AUD
€371 EUR
View
B+
Retailer 7
-
$576 AUD
£318 GBP
View
B+
Retailer 8
-
$581 AUD
ZAR 6,596 ZAR
View
B+
Retailer 9
-
$673 AUD
$473 USD
View
B+
Retailer 10
-
$712 AUD
$500 USD
View
B
Retailer 11
-
$1,092 AUD
$767 USD
View
B
Retailer 12
-
$1,111 AUD
$780 USD
View
B
Retailer 13
-
$1,511 AUD
£836 GBP
View
Most Expensive
B
Reve Diamonds
D83AA3E1D · Oct 30
$1,618 AUD
$1,137 USD
View
13 more retailers have this diamond
Prices start from $259 AUDSave up to $1,359 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
$259 AUD