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Heart|Lab Grown|IGI

6.78ct D VVS1 Heart Lab Grown Diamond

ID • D/VVS1 • IGI LG838658328

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG838658328

Diamond specifications and retailer prices

From €2,658 EUR
$2,970 USD
As of October 30, 2026
Save €8,212 EUR (76%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €19,014 EUR at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 6.78ct lab-grown heart diamond

This 6.78ct lab-grown heart sits in the over five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG838658328 or 838658328. Listed at 21 retailers as of October 30, 2026, with a 309% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

6.78
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838658328
Dimensions11.40 × 13.40 × 7.63 mm
L/W Ratio1.18
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.40 mm13.40 mm6.78 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838658328
Side View
Table 66.0%Crown 41.3°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 56.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €3,147 EUR|Low: €2,658 EUR|High: €15,353 EUR|Avg: €5,802 EUR|-2.9%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 30, 2026
Retailer 10€2,658 EUR
Retailer 15€2,892 EUR
Retailer 5€2,977 EUR
Retailer 8€3,084 EUR
Retailer 1€3,147 EUR
Retailer 2€3,227 EUR
Retailer 17€3,266 EUR
Retailer 7€3,853 EUR
Retailer 11€4,167 EUR
Retailer 14€4,406 EUR
Retailer 18€4,431 EUR
Retailer 4€5,723 EUR
Retailer 12€5,967 EUR
Retailer 13€7,857 EUR
Retailer 6€10,735 EUR
Retailer 3€10,825 EUR
Retailer 9€10,870 EUR
Retailer 16€15,116 EUR

19 data points across 18 retailers

21 retailers€2,658 EUR to €10,870 EUR

A
Cheapest Retailer
-
€2,658 EUR
$2,970 USD
A
Retailer 2
-
€2,892 EUR
$3,231 USD
View
A
Retailer 3
-
€2,977 EUR
$3,326 USD
View
Final sale: no returns
B+
Retailer 4
-
€3,084 EUR
$3,445 USD
View
B+
Retailer 5
-
€3,147 EUR
£2,768 GBP
View
Retailer 6
-
€3,147 EUR
$3,516 USD
View
Price last confirmed 18 days ago
B+
Retailer 7
-
€3,227 EUR
$3,605 USD
View
B+
Retailer 8
-
€3,266 EUR
$3,649 USD
View
B+
Retailer 9
-
€3,853 EUR
$4,305 USD
View
B+
Retailer 10
-
€4,167 EUR
£3,666 GBP
View
B+
Retailer 11
-
€4,406 EUR
$4,922 USD
View
B+
Retailer 12
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€4,431 EUR
$4,950 USD
View
Retailer 13
-
€5,723 EUR
A$9,836 AUD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
€5,967 EUR
ZAR 107,702 ZAR
View
B
Retailer 15
-
€7,857 EUR
£6,912 GBP
View
B
Retailer 16
-
€7,946 EUR
$8,877 USD
View
B
Retailer 17
-
€10,735 EUR
$11,993 USD
View
B
Retailer 18
-
€10,825 EUR
$12,094 USD
View
B
Retailer 19
-
€10,870 EUR
SGD 16,411 SGD
View
Retailer 20
-
€15,116 EUR
$16,888 USD
View
Price under review
Most Expensive
Novita Diamonds
cert_838658328 · Oct 8
€19,014 EUR
A$32,681 AUD
View
Price under review
20 more retailers have this diamond
Prices start from €2,658 EURSave up to €8,212 EUR

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
6.78ct Heart
€2,658 EUR