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Heart|Lab Grown|IGI

1.28ct D VVS1 Heart Lab Grown Diamond

EX • D/VVS1 • IGI LG774670800

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG774670800

Diamond specifications and retailer prices

From $279 USD
As of November 2, 2026
Save $1,167 USD (81%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $1,510 USD at Brilliant Earth · As of October 21, 2026
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG774670800 or 774670800. Listed at 25 retailers as of November 1, 2026, with a 418% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774670800
Dimensions6.97 × 7.33 × 4.47 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.97 mm7.33 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774670800
Side View
Table 60.0%Crown 35.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 61.0%

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: Nov 2
Current: $1,510 USD|Low: $268 USD|High: $1,560 USD|Avg: $721 USD|-3.2%
Brilliant Earth
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
November 3, 2026
Retailer 13$279 USD
Retailer 6$312 USD
Retailer 3$346 USD
Retailer 14$346 USD
Retailer 10$505 USD
Retailer 9$567 USD
Retailer 7$597 USD
Retailer 5$598 USD
Retailer 2$610 USD
Retailer 12$842 USD
Retailer 11$1,064 USD
Retailer 4$1,111 USD
Retailer 8$1,388 USD
Brilliant Earth$1,510 USD

43 data points across 14 retailers

25 retailers$279 USD to $1,446 USD

Retailer 1
-
$279 USD
Price last confirmed 34 days ago
A
Retailer 2
-
$279 USD
View
A
Retailer 3
-
$312 USD
View
Final sale: no returns
Retailer 4
-
$324 USD
View
Price last confirmed 35 days ago
Retailer 5
-
$342 USD
View
Price last confirmed 36 days ago
A
Retailer 6
-
$346 USD
View
Retailer 7
-
$346 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
$384 USD
HK$3,000 HKD
View
A
Retailer 9
-
$465 USD
View
A
Retailer 10
-
$505 USD
View
B+
Retailer 11
-
$567 USD
€540 EUR
View
B+
Retailer 12
-
$597 USD
ZAR 9,644 ZAR
View
B+
Retailer 13
-
$598 USD
View
B+
Retailer 14
-
$610 USD
£481 GBP
View
B+
Retailer 15
-
$666 USD
View
Retailer 16
-
$732 USD
View
Price last confirmed 7 days ago
B+
Retailer 17
-
$842 USD
A$1,296 AUD
View
Retailer 18
-
$883 USD
View
Price last confirmed 8 days ago
B
Retailer 19
-
$1,064 USD
View
B
Retailer 20
-
$1,111 USD
SGD 1,501 SGD
View
Retailer 21
-
$1,113 USD
View
Price last confirmed 33 days ago
B
Retailer 22
-
$1,164 USD
View
B
Retailer 23
-
$1,388 USD
£1,093 GBP
View
B
Retailer 24
-
$1,446 USD
View
Most Expensive
Brilliant Earth
18180896A · Oct 21
$1,510 USD
View
Price last confirmed 12 days ago
24 more retailers have this diamond
Prices start from $279 USDSave up to $1,167 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
$279 USD