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Heart|Lab Grown|IGI

1.28ct D VS1 Heart Lab Grown Diamond

EX • D/VS1 • IGI LG634499915

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG634499915

Diamond specifications and retailer prices

From $230 USD
As of November 2, 2026
Save $1,060 USD (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,290 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 LG634499915 or 634499915. Listed at 18 retailers as of November 1, 2026, with prices from $230 to $1,290, a $1,060 spread on the same certified stone. Reve Diamonds lists it at $1,290. 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 angle35.7°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634499915
Dimensions6.53 × 7.65 × 4.50 mm
L/W Ratio1.17
Girdle conditionFaceted
Culet sizePointed
Top View
6.53 mm7.65 mm1.28 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634499915
Side View
Table 58.0%Crown 35.7°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 58.8%

Caratlytics Score

How it works →
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 2
Current: $534 USD|Low: $228 USD|High: $1,290 USD|Avg: $628 USD|+18.9%
Retailer 1
Retailer 2
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Retailer 5
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Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 18
Reve Diamonds
November 2, 2026
Retailer 18$230 USD
Retailer 7$258 USD
Retailer 15$267 USD
Retailer 3$286 USD
Retailer 4$286 USD
Retailer 17$383 USD
Retailer 8$484 USD
Retailer 11$493 USD
Retailer 6$522 USD
Retailer 1$534 USD
Retailer 5$604 USD
Retailer 14$696 USD
Retailer 12$780 USD
Retailer 10$822 USD
Retailer 2$918 USD
Retailer 16$921 USD
Retailer 9$970 USD
Retailer 13$1,151 USD
Reve Diamonds$1,290 USD

37 data points across 19 retailers

18 retailers$230 USD to $1,290 USD

A
Cheapest Retailer
-
$230 USD
A
Retailer 2
-
$258 USD
View
Final sale: no returns
A
Retailer 3
-
$267 USD
View
A
Retailer 4
-
$286 USD
View
Retailer 5
-
$286 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$484 USD
View
B+
Retailer 7
-
$493 USD
ZAR 7,963 ZAR
View
B+
Retailer 8
-
$522 USD
View
B+
Retailer 9
-
$534 USD
£421 GBP
View
B+
Retailer 10
-
$604 USD
View
B+
Retailer 11
-
$696 USD
A$1,071 AUD
View
B+
Retailer 12
-
$780 USD
View
B
Retailer 13
-
$822 USD
View
B
Retailer 14
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$918 USD
View
B
Retailer 15
-
$921 USD
View
B
Retailer 16
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$970 USD
View
B
Retailer 17
-
$1,151 USD
£906 GBP
View
Most Expensive
B
Reve Diamonds
61657278E · Nov 1
$1,290 USD
View
17 more retailers have this diamond
Prices start from $230 USDSave up to $1,060 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
$230 USD