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Heart|Lab Grown|IGI

1.28ct E VS1 Heart Lab Grown Diamond

ID • E/VS1 • IGI LG665409677

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG665409677

Diamond specifications and retailer prices

From $235 USD
As of October 30, 2026
Save $1,072 USD (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $1,307 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.28ct lab-grown heart diamond

This 1.28ct lab-grown heart sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG665409677 or 665409677. Listed at 21 retailers as of October 30, 2026, with prices from $235 to $1,307, a $1,072 spread on the same certified stone. Reve Diamonds lists it at $1,307. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665409677
Dimensions6.79 × 7.52 × 4.44 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
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
6.79 mm7.52 mm1.28 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665409677
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 59.0%

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: $547 USD|Low: $224 USD|High: $1,307 USD|Avg: $619 USD|+2.8%
Retailer 1
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Retailer 19
Reve Diamonds
October 31, 2026
Retailer 3$235 USD
Retailer 16$263 USD
Retailer 11$273 USD
Retailer 7$292 USD
Retailer 9$292 USD
Retailer 2$493 USD
Retailer 8$493 USD
Retailer 14$501 USD
Retailer 17$502 USD
Retailer 5$534 USD
Retailer 1$547 USD
Retailer 12$584 USD
Retailer 18$712 USD
Retailer 6$768 USD
Retailer 19$801 USD
Retailer 13$860 USD
Retailer 4$939 USD
Retailer 10$991 USD
Retailer 15$1,176 USD
Reve Diamonds$1,307 USD

36 data points across 20 retailers

21 retailers$235 USD to $1,307 USD

A
Cheapest Retailer
-
$235 USD
A
Retailer 2
-
$263 USD
View
Final sale: no returns
A
Retailer 3
-
$273 USD
View
A
Retailer 4
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$292 USD
View
A
Retailer 5
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$292 USD
View
B+
Retailer 6
-
$493 USD
View
B+
Retailer 7
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$493 USD
View
B+
Retailer 8
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$501 USD
€477 EUR
View
B+
Retailer 9
-
$502 USD
ZAR 8,104 ZAR
View
B+
Retailer 10
-
$534 USD
View
B+
Retailer 11
-
$547 USD
£431 GBP
View
B+
Retailer 12
-
$584 USD
A$898 AUD
View
B+
Retailer 13
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$712 USD
A$1,096 AUD
View
B
Retailer 14
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$768 USD
View
B+
Retailer 15
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$801 USD
A$1,232 AUD
View
B
Retailer 16
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$860 USD
View
B
Retailer 17
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$939 USD
View
B
Retailer 18
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$991 USD
View
B
Retailer 19
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$1,064 USD
View
B
Retailer 20
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$1,176 USD
£926 GBP
View
Most Expensive
B
Reve Diamonds
C3FB009FE · Oct 30
$1,307 USD
View
20 more retailers have this diamond
Prices start from $235 USDSave up to $1,072 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
1.28ct Heart
$235 USD