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Round|Lab Grown|IGI

5.51ct F VS2 Round Lab Grown Diamond

ID • F/VS2 • IGI LG758503991

Shape and cutting style on the report: Round brilliant

Certificate IGI LG758503991

Diamond specifications and retailer prices

From $851 USD
As of October 29, 2026
Save $3,042 USD (78%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,893 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG758503991 or 758503991. Listed at 14 retailers as of October 29, 2026, with prices from $851 to $3,893, a $3,042 spread on the same certified stone. Taylor and Hart lists it at $3,893. 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

5.51
Carat
F
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG758503991
Dimensions11.39 × 11.34 × 6.91 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.39 mm11.34 mm5.51 ctF / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG758503991
Side View
Table 58.0%Crown 34.2°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.9%

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 29
Current: $1,500 USD|Low: $817 USD|High: $3,893 USD|Avg: $1,953 USD|+2.0%
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
Taylor and Hart
October 31, 2026
Retailer 11$851 USD
Retailer 12$953 USD
Retailer 3$988 USD
Retailer 13$988 USD
Retailer 7$1,165 USD
Retailer 8$1,299 USD
Retailer 1$1,500 USD
Retailer 2$1,588 USD
Retailer 5$1,759 USD
Retailer 4$2,213 USD
Retailer 9$2,270 USD
Retailer 10$3,091 USD
Retailer 6$3,721 USD
Taylor and Hart$3,893 USD

40 data points across 14 retailers

14 retailers$851 USD to $3,893 USD

A
Cheapest Retailer
-
$851 USD
A
Retailer 2
-
$926 USD
View
A
Retailer 3
-
$953 USD
View
Final sale: no returns
A
Retailer 4
-
$988 USD
View
A
Retailer 5
-
$1,165 USD
View
Retailer 6
-
$1,299 USD
£1,023 GBP
View
Price last confirmed 14 days ago
A
Retailer 7
-
$1,500 USD
£1,181 GBP
View
B+
Retailer 8
-
$1,588 USD
View
B+
Retailer 9
-
$2,213 USD
View
B
Retailer 10
-
$2,270 USD
View
B
Retailer 11
-
$2,777 USD
View
B
Retailer 12
-
$3,091 USD
View
B
Retailer 13
-
$3,721 USD
£2,930 GBP
View
Most Expensive
B
Taylor and Hart
A06PVF1 · Oct 30
$3,893 USD
View
13 more retailers have this diamond
Prices start from $851 USDSave up to $3,042 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
5.51ct Round
$851 USD