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Radiant|Lab Grown|IGI

0.78ct F VS1 Radiant Lab Grown Diamond

VG • F/VS1 • IGI LG551287550

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

Certificate IGI LG551287550

Diamond specifications and retailer prices

From $121 USD
As of November 2, 2026
Save $1,266 USD (91%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $1,387 USD at MOH London · As of November 1, 2026
View at MOH London

About this 0.78ct lab-grown radiant diamond

This 0.78ct lab-grown radiant sits in the just-under-one-carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG551287550 or 551287550. Listed at 24 retailers as of November 1, 2026, with prices from $121 to $1,387, a $1,266 spread on the same certified stone. MOH London lists it at $1,387. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.78
Carat
F
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551287550
Dimensions6.35 × 4.52 × 3.13 mm
L/W Ratio1.40
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.35 mm4.52 mm0.78 ctF / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551287550
Side View
Table 63.0%Crown 39.8°Girdle: MediumPavilion 36.5°Culet: NoneDepth 69.2%

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: $1,387 USD|Low: $117 USD|High: $1,405 USD|Avg: $433 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
November 3, 2026
Retailer 16$121 USD
Retailer 4$160 USD
Retailer 7$160 USD
Retailer 13$225 USD
Retailer 2$281 USD
Retailer 6$291 USD
Retailer 11$295 USD
Retailer 10$302 USD
Retailer 12$362 USD
Retailer 9$423 USD
Retailer 8$464 USD
Retailer 3$470 USD
Retailer 5$534 USD
Retailer 15$540 USD
Retailer 14$869 USD
MOH London$1,387 USD

46 data points across 16 retailers

24 retailers$121 USD to $1,387 USD

A
Cheapest Retailer
-
$121 USD
Retailer 2
-
$141 USD
View
Price last confirmed 36 days ago
Retailer 3
-
$159 USD
View
Price last confirmed 36 days ago
A
Retailer 4
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$160 USD
View
Retailer 5
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$160 USD
View
Price last confirmed 9 days ago
A
Retailer 6
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$207 USD
View
A
Retailer 7
-
$225 USD
View
A
Retailer 8
-
$281 USD
£221 GBP
View
B+
Retailer 9
-
$291 USD
View
B+
Retailer 10
-
$295 USD
€281 EUR
View
A
Retailer 11
-
$302 USD
ZAR 4,878 ZAR
View
B+
Retailer 12
-
$362 USD
£285 GBP
View
B+
Retailer 13
-
$423 USD
A$651 AUD
View
B+
Retailer 14
-
$464 USD
View
B+
Retailer 15
-
$470 USD
View
B
Retailer 16
-
$534 USD
View
B
Retailer 17
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$540 USD
View
B
Retailer 18
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$630 USD
SGD 851 SGD
View
B
Retailer 19
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$709 USD
View
B
Retailer 20
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$717 USD
£564 GBP
View
B
Retailer 21
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$869 USD
£684 GBP
View
B
Retailer 22
-
$1,270 USD
View
B
Retailer 23
-
$1,360 USD
View
Most Expensive
B
MOH London
LG551287550 · Nov 1
$1,387 USD
£1,092 GBP
View
23 more retailers have this diamond
Prices start from $121 USDSave up to $1,266 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
$121 USD