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Heart|Lab Grown|IGI

1.28ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG742508950

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG742508950

Diamond specifications and retailer prices

From $228 USD
As of November 1, 2026
Save $978 USD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,206 USD at Reve Diamonds · As of November 1, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG742508950 or 742508950. Listed at 13 retailers as of November 1, 2026, with prices from $228 to $1,206, a $978 spread on the same certified stone. Reve Diamonds lists it at $1,206. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG742508950
Dimensions6.48 × 7.63 × 4.52 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.48 mm7.63 mm1.28 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG742508950
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 39°Culet: NoneDepth 59.2%

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: Nov 1
Current: $616 USD|Low: $228 USD|High: $1,206 USD|Avg: $637 USD|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
November 2, 2026
Retailer 12$228 USD
Retailer 2$253 USD
Retailer 11$339 USD
Retailer 7$436 USD
Retailer 13$437 USD
Retailer 6$465 USD
Retailer 4$512 USD
Retailer 3$575 USD
Retailer 1$616 USD
Retailer 10$815 USD
Retailer 5$866 USD
Retailer 9$890 USD
Retailer 8$1,182 USD
Reve Diamonds$1,206 USD

36 data points across 14 retailers

13 retailers$228 USD to $1,206 USD

A
Cheapest Retailer
-
$228 USD
Final sale: no returns
Retailer 2
-
$250 USD
View
Price last confirmed 36 days ago
A
Retailer 3
-
$436 USD
ZAR 7,051 ZAR
View
A
Retailer 4
-
$437 USD
View
B+
Retailer 5
-
$465 USD
£366 GBP
View
B+
Retailer 6
-
$512 USD
View
B+
Retailer 7
-
$575 USD
View
B+
Retailer 8
-
$616 USD
A$948 AUD
View
B
Retailer 9
-
$815 USD
View
B
Retailer 10
-
$866 USD
View
B
Retailer 11
-
$890 USD
View
B
Retailer 12
-
$1,182 USD
£931 GBP
View
Most Expensive
B
Reve Diamonds
124C4CA6D · Nov 1
$1,206 USD
View
12 more retailers have this diamond
Prices start from $228 USDSave up to $978 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
$228 USD