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 $182 USD
As of October 27, 2026
Save $955 USD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,137 USD at Reve Diamonds · As of October 28, 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 13 retailers as of October 27, 2026, with prices from $182 to $1,137, a $955 spread on the same certified stone. Reve Diamonds lists it at $1,137. 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
Color
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

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 27
Current: $390 USD|Low: $182 USD|High: $1,137 USD|Avg: $469 USD|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
October 29, 2026
Retailer 11$182 USD
Retailer 5$203 USD
Retailer 7$211 USD
Retailer 6$318 USD
Retailer 10$346 USD
Retailer 1$390 USD
Retailer 8$406 USD
Retailer 9$408 USD
Retailer 2$473 USD
Retailer 3$780 USD
Retailer 4$1,062 USD
Reve Diamonds$1,137 USD

4 data points across 12 retailers

13 retailers$182 USD to $1,137 USD

A
Cheapest Retailer
-
$182 USD
A
Retailer 2
-
$203 USD
View
Final sale: no returns
A
Retailer 3
-
$211 USD
View
A
Retailer 4
-
$318 USD
View
B+
Retailer 5
-
$346 USD
View
B+
Retailer 6
-
$390 USD
€371 EUR
View
B+
Retailer 7
-
$406 USD
£320 GBP
View
B+
Retailer 8
-
$408 USD
ZAR 6,596 ZAR
View
B+
Retailer 9
-
$473 USD
View
B
Retailer 10
-
$580 USD
View
B
Retailer 11
-
$780 USD
View
Retailer 12
-
$1,062 USD
£836 GBP
View
Most Expensive
B
Reve Diamonds
D83AA3E1D · Oct 28
$1,137 USD
View
12 more retailers have this diamond
Prices start from $182 USDSave up to $955 USD

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
$182 USD