Heart|Lab Grown|IGI

0.51ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG825666401

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825666401

Diamond specifications and retailer prices

From $216 USD
As of October 30, 2026
Save $956 USD (82%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,172 USD at Reve Diamonds · As of November 1, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG825666401 or 825666401. Listed at 17 retailers as of October 30, 2026, with prices from $216 to $1,172, a $956 spread on the same certified stone. Reve Diamonds lists it at $1,172. 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
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825666401
Dimensions4.95 × 5.59 × 3.21 mm
L/W Ratio1.13
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
4.95 mm5.59 mm0.51 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825666401
Side View
Table 58.0%Crown 35.9°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 57.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $433 USD|Low: $216 USD|High: $1,172 USD|Avg: $612 USD|+1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
November 1, 2026
Retailer 11$216 USD
Retailer 9$338 USD
Retailer 2$357 USD
Retailer 6$433 USD
Retailer 1$433 USD
Retailer 10$507 USD
Retailer 4$510 USD
Retailer 7$612 USD
Retailer 8$773 USD
Retailer 3$824 USD
Retailer 5$1,126 USD
Reve Diamonds$1,172 USD

27 data points across 12 retailers

17 retailers$216 USD to $1,172 USD

Retailer 1
-
$193 USD
Price last confirmed 23 days ago
A
Retailer 2
-
$216 USD
View
Final sale: no returns
Retailer 3
-
$224 USD
View
Price last confirmed 33 days ago
Retailer 4
-
$240 USD
View
Price last confirmed 29 days ago
Retailer 5
-
$240 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
$338 USD
View
A
Retailer 7
-
$357 USD
View
B+
Retailer 8
-
$433 USD
ZAR 6,995 ZAR
View
B+
Retailer 9
-
$433 USD
£341 GBP
View
B+
Retailer 10
-
$507 USD
View
B+
Retailer 11
-
$510 USD
View
B+
Retailer 12
-
$612 USD
A$941 AUD
View
Retailer 13
-
$770 USD
View
Price last confirmed 31 days ago
B
Retailer 14
-
$773 USD
View
B
Retailer 15
-
$824 USD
View
B
Retailer 16
-
$1,126 USD
£887 GBP
View
Most Expensive
B
Reve Diamonds
936DE1858 · Nov 1
$1,172 USD
View
16 more retailers have this diamond
Prices start from $216 USDSave up to $956 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
$216 USD