Radiant|Lab Grown|IGI

0.78ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG818658786

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG818658786

Diamond specifications and retailer prices

From $343 USD
As of October 30, 2026
Save $1,190 USD (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,533 USD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.78ct lab-grown radiant diamond

This 0.78ct lab-grown radiant 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 LG818658786 or 818658786. Listed at 18 retailers as of October 30, 2026, with prices from $343 to $1,533, a $1,190 spread on the same certified stone. Reve Diamonds lists it at $1,533. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.3°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818658786
Dimensions6.62 × 4.54 × 3.16 mm
L/W Ratio1.46
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
6.62 mm4.54 mm0.78 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818658786
Side View
Table 65.0%Crown 41.3°Girdle: MED-STKPavilion 37.1°Culet: NoneDepth 69.6%

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 30
Current: $710 USD|Low: $244 USD|High: $1,542 USD|Avg: $868 USD|-36.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
October 30, 2026
Retailer 3$343 USD
Retailer 12$535 USD
Retailer 11$542 USD
Retailer 10$560 USD
Retailer 8$616 USD
Retailer 5$676 USD
Retailer 6$687 USD
Retailer 1$710 USD
Retailer 2$854 USD
Retailer 9$1,168 USD
Retailer 4$1,269 USD
Retailer 7$1,525 USD
Reve Diamonds$1,533 USD

34 data points across 13 retailers

18 retailers$343 USD to $1,533 USD

Retailer 1
-
$306 USD
Price last confirmed 22 days ago
A
Retailer 2
-
$343 USD
View
Final sale: no returns
Retailer 3
-
$375 USD
View
Price last confirmed 35 days ago
Retailer 4
-
$380 USD
View
Price last confirmed 18 days ago
Retailer 5
-
$380 USD
View
Price last confirmed 27 days ago
A
Retailer 6
-
$535 USD
View
A
Retailer 7
-
$542 USD
View
A
Retailer 8
-
$560 USD
View
Retailer 9
-
$616 USD
€587 EUR
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$676 USD
£532 GBP
View
B+
Retailer 11
-
$687 USD
ZAR 11,104 ZAR
View
B+
Retailer 12
-
$710 USD
View
B+
Retailer 13
-
$854 USD
View
B
Retailer 14
-
$1,168 USD
View
Retailer 15
-
$1,222 USD
View
Price last confirmed 30 days ago
B
Retailer 16
-
$1,269 USD
View
B
Retailer 17
-
$1,525 USD
£1,201 GBP
View
Most Expensive
B
Reve Diamonds
E065381F7 · Oct 30
$1,533 USD
View
17 more retailers have this diamond
Prices start from $343 USDSave up to $1,190 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 Radiant
$343 USD