Marquise|Lab Grown|IGI

0.78ct D FL Marquise Lab Grown Diamond

EX • D/FL • IGI LG845658664

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG845658664

Diamond specifications and retailer prices

From $508 USD
As of October 30, 2026
Save $2,135 USD (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,643 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.78ct lab-grown marquise diamond

This 0.78ct lab-grown marquise sits in the just-under-one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG845658664 or 845658664. Listed at 17 retailers as of October 29, 2026, with prices from $508 to $2,643, a $2,135 spread on the same certified stone. MOH London lists it at $2,643. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.78
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845658664
Dimensions9.83 × 4.78 × 2.97 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
9.83 mm4.78 mm0.78 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845658664
Side View
Table 61.0%Crown 34.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.1%

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: Oct 30
Current: $2,643 USD|Low: $508 USD|High: $2,643 USD|Avg: $1,180 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
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 8$508 USD
Retailer 10$554 USD
Retailer 5$569 USD
Retailer 7$611 USD
Retailer 15$630 USD
Retailer 13$678 USD
Retailer 16$822 USD
Retailer 4$977 USD
Retailer 2$1,023 USD
Retailer 14$1,080 USD
Retailer 3$1,139 USD
Retailer 11$1,624 USD
Retailer 12$1,625 USD
Retailer 17$1,657 USD
Retailer 9$2,050 USD
Retailer 6$2,176 USD
MOH London$2,643 USD

6 data points across 17 retailers

17 retailers$508 USD to $2,643 USD

A
Cheapest Retailer
-
$508 USD
A
Retailer 2
-
$554 USD
View
Final sale: no returns
A
Retailer 3
-
$569 USD
View
A
Retailer 4
-
$611 USD
View
A
Retailer 5
-
$630 USD
View
B+
Retailer 6
-
$678 USD
HK$5,300 HKD
View
B+
Retailer 7
-
$822 USD
View
B+
Retailer 8
-
$977 USD
View
B+
Retailer 9
-
$1,023 USD
£805 GBP
View
B+
Retailer 10
-
$1,080 USD
View
B
Retailer 11
-
$1,139 USD
ZAR 18,408 ZAR
View
B
Retailer 12
-
$1,624 USD
SGD 2,194 SGD
View
B
Retailer 13
-
$1,625 USD
View
B
Retailer 14
-
$1,657 USD
View
B
Retailer 15
-
$2,050 USD
View
B
Retailer 16
-
$2,176 USD
View
Most Expensive
B
MOH London
LG845658664 · Oct 29
$2,643 USD
£2,081 GBP
View
16 more retailers have this diamond
Prices start from $508 USDSave up to $2,135 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 Marquise
$508 USD