Round|Lab Grown|IGI

3.51ct I VVS1 Round Lab Grown Diamond

ID • I/VVS1 • IGI LG771603843

Shape and cutting style on the report: Round brilliant

Certificate IGI LG771603843

Diamond specifications and retailer prices

From $458 USD
As of October 29, 2026
Save $3,442 USD (88%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,900 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.51ct lab-grown round diamond

This 3.51ct lab-grown round sits in the three to five carat band, graded I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG771603843 or 771603843. Listed at 12 retailers as of October 29, 2026, with prices from $458 to $3,900, a $3,442 spread on the same certified stone. Brilliant Earth lists it at $3,900. 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

3.51
Carat
I
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771603843
Dimensions9.75 × 9.70 × 6.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II Light Blue
Top View
9.75 mm9.70 mm3.51 ctI / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771603843
Side View
Table 58.0%Crown 35.5°Girdle: MediumPavilion 41.3°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
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: Oct 29
Current: $3,900 USD|Low: $446 USD|High: $5,190 USD|Avg: $1,918 USD|-24.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 13$458 USD
Retailer 8$655 USD
Retailer 10$802 USD
Retailer 9$875 USD
Retailer 4$948 USD
Retailer 6$1,216 USD
Retailer 5$1,422 USD
Retailer 7$1,423 USD
Retailer 12$1,949 USD
Retailer 2$2,068 USD
Retailer 11$3,630 USD
Retailer 3$3,855 USD
Brilliant Earth$3,900 USD

13 data points across 13 retailers

12 retailers$458 USD to $3,900 USD

Retailer 1
-
$409 USD
Price last confirmed 37 days ago
A
Retailer 2
-
$458 USD
View
Final sale: no returns
A
Retailer 3
-
$655 USD
View
B+
Retailer 4
-
$802 USD
View
A
Retailer 5
-
$875 USD
View
B+
Retailer 6
-
$1,216 USD
ZAR 19,638 ZAR
View
B+
Retailer 7
-
$1,423 USD
View
B
Retailer 8
-
$1,949 USD
View
B
Retailer 9
-
$2,068 USD
£1,628 GBP
View
B
Retailer 10
-
$3,630 USD
View
Retailer 11
-
$3,855 USD
View
Price last confirmed 51 days ago
Most Expensive
B
Brilliant Earth
21524789Y · Oct 30
$3,900 USD
View
11 more retailers have this diamond
Prices start from $458 USDSave up to $3,442 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
3.51ct Round
$458 USD