Heart|Lab Grown|IGI

1.00ct E IF Heart Lab Grown Diamond

VG • E/IF • IGI LG842658717

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG842658717

Diamond specifications and retailer prices

From $326 USD
As of October 28, 2026
Save $1,350 USD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,676 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG842658717 or 842658717. Listed at 17 retailers as of October 27, 2026, with prices from $326 to $1,676, a $1,350 spread on the same certified stone. Queensmith lists it at $1,676. 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

1.00
Carat
E
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842658717
Dimensions5.95 × 6.60 × 4.16 mm
L/W Ratio1.11
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.95 mm6.60 mm1.00 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842658717
Side View
Table 65.0%Crown 35.4°Girdle: STK-THKPavilion 41.9°Culet: NoneDepth 63.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $1,676 USD|Low: $326 USD|High: $1,676 USD|Avg: $843 USD
Queensmith
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
Retailer 15
Retailer 16
Retailer 17
October 30, 2026
Retailer 4$326 USD
Retailer 2$384 USD
Retailer 8$488 USD
Retailer 16$520 USD
Retailer 7$584 USD
Retailer 12$586 USD
Retailer 14$623 USD
Retailer 10$641 USD
Retailer 5$770 USD
Retailer 13$884 USD
Retailer 6$969 USD
Retailer 11$1,065 USD
Retailer 15$1,113 USD
Retailer 9$1,213 USD
Retailer 17$1,454 USD
Retailer 3$1,488 USD
Queensmith$1,676 USD

14 data points across 17 retailers

17 retailers$326 USD to $1,676 USD

A
Cheapest Retailer
-
$326 USD
Final sale: no returns
A
Retailer 2
-
$384 USD
£303 GBP
View
B+
Retailer 3
-
$488 USD
View
B+
Retailer 4
-
$520 USD
View
B+
Retailer 5
-
$584 USD
View
B+
Retailer 6
-
$586 USD
€558 EUR
View
B+
Retailer 7
-
$623 USD
ZAR 10,058 ZAR
View
B+
Retailer 8
-
$641 USD
£505 GBP
View
B+
Retailer 9
-
$770 USD
View
B
Retailer 10
-
$884 USD
A$1,360 AUD
View
B
Retailer 11
-
$969 USD
SGD 1,310 SGD
View
B
Retailer 12
-
$1,065 USD
A$1,639 AUD
View
B
Retailer 13
-
$1,113 USD
View
B
Retailer 14
-
$1,213 USD
View
B
Retailer 15
-
$1,454 USD
£1,145 GBP
View
B
Retailer 16
-
$1,488 USD
View
Most Expensive
B
Queensmith
LG842658717 · Oct 27
$1,676 USD
£1,320 GBP
View
16 more retailers have this diamond
Prices start from $326 USDSave up to $1,350 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
1.00ct Heart
$326 USD