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Heart|Lab Grown|IGI

0.78ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG700587860

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG700587860

Diamond specifications and retailer prices

From $110 USD
As of October 27, 2026
Save $1,032 USD (90%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,142 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.78ct lab-grown heart diamond

This 0.78ct lab-grown heart sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG700587860 or 700587860. Listed at 10 retailers as of October 27, 2026, with prices from $110 to $1,142, a $1,032 spread on the same certified stone. MOH London lists it at $1,142. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.78
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700587860
Dimensions5.91 × 6.29 × 3.62 mm
L/W Ratio1.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.91 mm6.29 mm0.78 ctD / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700587860
Side View
Table 64.0%Crown 32.6°Girdle: THN-STKPavilion 40°Culet: NoneDepth 57.6%

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: Oct 27
Current: $1,142 USD|Low: $110 USD|High: $1,142 USD|Avg: $371 USD
MOH London
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
October 29, 2026
Retailer 14$110 USD
Retailer 12$127 USD
Retailer 7$145 USD
Retailer 13$166 USD
Retailer 11$271 USD
Retailer 2$271 USD
Retailer 10$296 USD
Retailer 3$330 USD
Retailer 8$376 USD
Retailer 6$420 USD
Retailer 9$437 USD
Retailer 5$622 USD
Retailer 4$710 USD
MOH London$1,142 USD

3 data points across 14 retailers

10 retailers$110 USD to $1,142 USD

A
Cheapest Retailer
-
$110 USD
A
Retailer 2
-
$127 USD
View
A
Retailer 3
-
$145 USD
View
A
Retailer 4
-
$166 USD
HK$1,300 HKD
View
B+
Retailer 5
-
$271 USD
View
B+
Retailer 6
-
$271 USD
£214 GBP
View
B+
Retailer 7
-
$296 USD
£233 GBP
View
B+
Retailer 8
-
$376 USD
View
B
Retailer 9
-
$437 USD
View
Most Expensive
B
MOH London
LG700587860 · Oct 29
$1,142 USD
£899 GBP
View
9 more retailers have this diamond
Prices start from $110 USDSave up to $1,032 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
0.78ct Heart
$110 USD