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Marquise|Lab Grown|IGI

4.51ct F VVS1 Marquise Lab Grown Diamond

EX • F/VVS1 • IGI LG803636841

Certificate IGI LG803636841

Diamond specifications and retailer prices

From $2,330 USD
Save $4,708 USD (67%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,038 USD at Taylor and Hart
View at Taylor and Hart

About this 4.51ct lab-grown marquise diamond

This 4.51ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG803636841 or 803636841. Listed at 8 retailers, with prices from $2,330 to $7,038 at Taylor and Hart, a $4,708 spread on the same certified stone. 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

4.51
Carat
F
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803636841
Dimensions17.12 × 8.59 × 5.18 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.12 mm8.59 mm4.51 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803636841
Side View
Table 64.0%Crown 34.8°Girdle: MED-STKPavilion 39.4°Culet: NoneDepth 60.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Sep 30
Current: $3,678 USD|Low: $2,330 USD|High: $7,855 USD|Avg: $4,141 USD|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Taylor and Hart
October 1, 2026
Retailer 5$2,330 USD
Retailer 6$2,870 USD
Retailer 3$2,913 USD
Retailer 2$3,188 USD
Retailer 1$3,678 USD
Retailer 4$5,799 USD
Retailer 7$6,706 USD
Taylor and Hart$7,038 USD

36 data points across 8 retailers

8 retailers$2,330 USD to $7,038 USD

B+
Cheapest Retailer
-
$2,330 USD
B+
Retailer 2
-
$2,870 USD
View
B+
Retailer 3
-
$2,910 USD
£2,292 GBP
View
B
Retailer 4
-
$3,188 USD
View
B
Retailer 5
-
$3,678 USD
€3,503 EUR
View
B
Retailer 6
-
$5,799 USD
£4,566 GBP
View
B
Retailer 7
-
$6,706 USD
SGD 9,062 SGD
View
Most Expensive
B
Taylor and Hart
Z0PWE6N · Oct 1
$7,038 USD
View
7 more retailers have this diamond
Prices start from $2,330 USDSave up to $4,708 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.

B+
4.51ct Marquise
$2,330 USD