CaratHunter
Plans
Round|Lab Grown|IGI

4.51ct H VVS2 Round Lab Grown Diamond

EX • H/VVS2 • IGI LG782679450

Shape and cutting style on the report: Round brilliant

Certificate IGI LG782679450

Diamond specifications and retailer prices

From $998 USD
As of October 30, 2026
Save $3,172 USD (76%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,170 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG782679450 or 782679450. Listed at 9 retailers as of October 30, 2026, with prices from $998 to $4,170, a $3,172 spread on the same certified stone. Brilliant Earth lists it at $4,170. 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
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782679450
Dimensions10.69 × 10.73 × 6.38 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
10.69 mm10.73 mm4.51 ctH / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782679450
Side View
Table 60.0%Crown 32.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 59.6%

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 30
Current: $4,170 USD|Low: $975 USD|High: $8,444 USD|Avg: $2,929 USD|-45.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 9$998 USD
Retailer 5$1,037 USD
Retailer 4$1,219 USD
Retailer 8$1,579 USD
Retailer 10$1,647 USD
Retailer 6$1,799 USD
Retailer 7$2,406 USD
Retailer 11$2,900 USD
Retailer 2$3,246 USD
Brilliant Earth$4,170 USD
Retailer 3$8,444 USD

31 data points across 11 retailers

9 retailers$998 USD to $4,170 USD

B+
Cheapest Retailer
-
$998 USD
A
Retailer 2
-
$1,037 USD
HK$8,100 HKD
View
A
Retailer 3
-
$1,219 USD
€1,161 EUR
View
B+
Retailer 4
-
$1,579 USD
View
B+
Retailer 5
-
$1,799 USD
View
B+
Retailer 6
-
$2,406 USD
View
B
Retailer 7
-
$2,900 USD
CA$4,028 CAD
View
B
Retailer 8
-
$3,246 USD
£2,556 GBP
View
Most Expensive
B
Brilliant Earth
18268884A · Oct 30
$4,170 USD
View
8 more retailers have this diamond
Prices start from $998 USDSave up to $3,172 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
$998 USD