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Round|Lab Grown|IGI

4.51ct H VVS1 Round Lab Grown Diamond

EX • H/VVS1 • IGI LG722510913

Shape and cutting style on the report: Round brilliant

Certificate IGI LG722510913

Diamond specifications and retailer prices

From $1,250 USD
As of November 2, 2026
Save $1,948 USD (61%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $5,030 USD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 4.51ct lab-grown round diamond

This 4.51ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG722510913 or 722510913. Listed at 8 retailers as of November 1, 2026, with a 156% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG722510913
Dimensions10.45 × 10.34 × 6.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.45 mm10.34 mm4.51 ctH / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG722510913
Side View
Table 59.0%Crown 36.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.3%

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: $5,030 USD|Low: $814 USD|High: $5,164 USD|Avg: $2,034 USD|-2.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$814 USD
Retailer 9$968 USD
Retailer 10$1,000 USD
Retailer 6$1,250 USD
Retailer 4$1,324 USD
Retailer 3$1,733 USD
Retailer 7$2,040 USD
Retailer 8$2,807 USD
Retailer 2$3,198 USD
Rare Carat$5,030 USD

19 data points across 10 retailers

8 retailers$1,250 USD to $3,198 USD

Retailer 1
-
$814 USD
Price last confirmed 16 days ago
A
Retailer 2
-
$1,250 USD
View
B+
Retailer 3
-
$1,324 USD
View
B+
Retailer 4
-
$1,733 USD
ZAR 27,996 ZAR
View
B+
Retailer 5
-
$2,040 USD
View
B
Retailer 6
-
$2,807 USD
View
B
Retailer 7
-
$3,198 USD
£2,518 GBP
View
Most Expensive
Rare Carat
C33-4A_l_722510913 · Oct 18
$5,030 USD
View
Price last confirmed 15 days ago
7 more retailers have this diamond
Prices start from $1,250 USDSave up to $1,948 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
4.51ct Round
$1,250 USD