Radiant|Lab Grown|IGI

3.10ct E VS1 Radiant Lab Grown Diamond

ID • E/VS1 • IGI LG840655647

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG840655647

Diamond specifications and retailer prices

From $477 USD
As of October 23, 2026
Save $1,737 USD (78%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,925 USD at Helzberg Diamonds · As of October 7, 2026
View at Helzberg Diamonds

About this 3.1ct lab-grown radiant diamond

This 3.1ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840655647 or 840655647. Listed at 23 retailers as of October 23, 2026, with a 364% 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

3.10
Carat
E
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle50.8°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840655647
Dimensions7.23 × 9.99 × 4.89 mm
L/W Ratio1.38
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.23 mm9.99 mm3.10 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840655647
Side View
Table 65.0%Crown 50.8°Girdle: MED-STKPavilion 34.7°Culet: NoneDepth 67.6%

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 23
Current: $3,925 USD|Low: $477 USD|High: $498,826 USD|Avg: $49,520 USD
Helzberg Diamonds
Retailer 2
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Retailer 24
October 27, 2026
Retailer 5$477 USD
Retailer 7$533 USD
Retailer 23$534 USD
Retailer 18$592 USD
Retailer 8$653 USD
Retailer 2$677 USD
Retailer 19$730 USD
Retailer 9$802 USD
Retailer 6$869 USD
Retailer 17$953 USD
Retailer 13$976 USD
Retailer 22$1,067 USD
Retailer 3$1,273 USD
Retailer 12$1,591 USD
Retailer 14$1,896 USD
Retailer 20$1,902 USD
Retailer 24$1,931 USD
Retailer 4$1,954 USD
Retailer 11$2,078 USD
Retailer 21$2,177 USD
Retailer 10$2,214 USD
Helzberg Diamonds$3,925 USD
Retailer 16$195,148 USD
Retailer 15$308,736 USD

10 data points across 24 retailers

23 retailers$477 USD to $2,214 USD

A
Cheapest Retailer
-
$477 USD
A
Retailer 2
-
$533 USD
View
Final sale: no returns
A
Retailer 3
-
$534 USD
View
A
Retailer 4
-
$592 USD
View
A
Retailer 5
-
$653 USD
HK$5,100 HKD
View
A
Retailer 6
-
$677 USD
£533 GBP
View
A
Retailer 7
-
$730 USD
View
B+
Retailer 8
-
$802 USD
View
A
Retailer 9
-
$869 USD
€828 EUR
View
A
Retailer 10
-
$976 USD
£769 GBP
View
A
Retailer 11
-
$1,067 USD
View
A
Retailer 12
-
$1,273 USD
ZAR 20,569 ZAR
View
B+
Retailer 13
-
$1,591 USD
View
B+
Retailer 14
-
$1,896 USD
SGD 2,562 SGD
View
B+
Retailer 15
-
$1,902 USD
View
B+
Retailer 16
-
$1,931 USD
View
B+
Retailer 17
-
$1,954 USD
View
B+
Retailer 18
-
$2,078 USD
View
B+
Retailer 19
-
$2,177 USD
£1,714 GBP
View
B+
Retailer 20
-
$2,214 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMLLMKN · Oct 7
$3,925 USD
View
Price last confirmed 22 days ago
20 more retailers have this diamond
Prices start from $477 USDSave up to $1,737 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
3.10ct Radiant
$477 USD