CaratHunter
Plans
Oval|Lab Grown|IGI

3.51ct D VS2 Oval Lab Grown Diamond

ID • D/VS2 • IGI LG818635909

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818635909

Diamond specifications and retailer prices

From $930 USD
As of October 29, 2026
Save $4,040 USD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,970 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.51ct lab-grown oval diamond

This 3.51ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818635909 or 818635909. Listed at 16 retailers as of October 29, 2026, with prices from $930 to $4,970, a $4,040 spread on the same certified stone. Brilliant Earth lists it at $4,970. 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
D
Color
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818635909
Dimensions12.07 × 8.59 × 5.35 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.07 mm8.59 mm3.51 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818635909
Side View
Table 61.0%Crown 35.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.3%

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: $4,970 USD|Low: $752 USD|High: $5,120 USD|Avg: $2,198 USD|-2.9%
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 3$752 USD
Retailer 6$930 USD
Retailer 2$1,054 USD
Retailer 4$1,198 USD
Retailer 10$1,226 USD
Retailer 8$1,920 USD
Retailer 11$2,332 USD
Retailer 9$2,563 USD
Retailer 7$3,085 USD
Retailer 5$3,183 USD
Brilliant Earth$4,970 USD

41 data points across 11 retailers

16 retailers$930 USD to $4,970 USD

Retailer 1
-
$622 USD
Price last confirmed 28 days ago
Retailer 2
-
$705 USD
View
Price last confirmed 34 days ago
Retailer 3
-
$752 USD
View
Price last confirmed 27 days ago
A
Retailer 4
-
$930 USD
View
A
Retailer 5
-
$1,054 USD
£830 GBP
View
A
Retailer 6
-
$1,198 USD
£943 GBP
View
A
Retailer 7
-
$1,226 USD
View
A
Retailer 8
-
$1,550 USD
View
B+
Retailer 9
-
$1,920 USD
View
Retailer 10
-
$2,113 USD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
$2,332 USD
£1,836 GBP
View
B+
Retailer 12
-
$2,563 USD
View
Retailer 13
-
$2,593 USD
View
Price last confirmed 11 days ago
B
Retailer 14
-
$3,085 USD
View
B
Retailer 15
-
$3,183 USD
£2,506 GBP
View
Most Expensive
B
Brilliant Earth
20790588A · Oct 29
$4,970 USD
View
15 more retailers have this diamond
Prices start from $930 USDSave up to $4,040 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 Oval
$930 USD