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Heart|Lab Grown|IGI

0.51ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG818658796

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818658796

Diamond specifications and retailer prices

From $216 USD
As of November 1, 2026
Save $956 USD (82%) vs most expensive(unlock to see where)
18 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 top-tier cut grade and certified by IGI LG818658796 or 818658796. Listed at 18 retailers as of November 1, 2026, with prices from $216 to $1,172, a $956 spread on the same certified stone. Reve Diamonds lists it at $1,172. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658796
Dimensions5.54 × 5.07 × 3.12 mm
L/W Ratio1.09
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
5.54 mm5.07 mm0.51 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658796
Side View
Table 63.0%Crown 39.3°Girdle: STK-THKPavilion 37°Culet: NoneDepth 56.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $610 USD|Low: $216 USD|High: $1,172 USD|Avg: $568 USD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
November 2, 2026
Retailer 3$216 USD
Retailer 12$240 USD
Retailer 11$338 USD
Retailer 10$357 USD
Retailer 8$407 USD
Retailer 6$435 USD
Retailer 5$437 USD
Retailer 2$507 USD
Retailer 1$610 USD
Retailer 9$773 USD
Retailer 4$824 USD
Retailer 7$1,120 USD
Reve Diamonds$1,172 USD

34 data points across 13 retailers

18 retailers$216 USD to $1,172 USD

Retailer 1
-
$193 USD
Price last confirmed 25 days ago
A
Retailer 2
-
$216 USD
View
Final sale: no returns
Retailer 3
-
$224 USD
View
Price last confirmed 34 days ago
Retailer 4
-
$236 USD
View
Price last confirmed 38 days ago
Retailer 5
-
$240 USD
View
Price last confirmed 30 days ago
Retailer 6
-
$240 USD
View
Price last confirmed 21 days ago
A
Retailer 7
-
$338 USD
View
A
Retailer 8
-
$357 USD
View
B+
Retailer 9
-
$407 USD
€388 EUR
View
B+
Retailer 10
-
$435 USD
ZAR 7,032 ZAR
View
B+
Retailer 11
-
$437 USD
£344 GBP
View
B+
Retailer 12
-
$507 USD
View
B+
Retailer 13
-
$610 USD
A$939 AUD
View
Retailer 14
-
$770 USD
View
Price last confirmed 33 days ago
B
Retailer 15
-
$773 USD
View
B
Retailer 16
-
$824 USD
View
B
Retailer 17
-
$1,120 USD
£882 GBP
View
Most Expensive
B
Reve Diamonds
AECDB604D · Nov 1
$1,172 USD
View
17 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