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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 $679 AUD
$477 USD
As of October 23, 2026
Save $2,472 AUD (78%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $5,587 AUD 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 23
Current: $5,587 AUD|Low: $679 AUD|High: $710,029 AUD|Avg: $70,487 AUD
Helzberg Diamonds
Retailer 2
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Retailer 24
October 27, 2026
Retailer 5$679 AUD
Retailer 7$759 AUD
Retailer 23$760 AUD
Retailer 18$843 AUD
Retailer 8$929 AUD
Retailer 2$964 AUD
Retailer 19$1,039 AUD
Retailer 9$1,142 AUD
Retailer 6$1,238 AUD
Retailer 17$1,357 AUD
Retailer 13$1,390 AUD
Retailer 22$1,519 AUD
Retailer 3$1,812 AUD
Retailer 12$2,265 AUD
Retailer 14$2,699 AUD
Retailer 20$2,707 AUD
Retailer 24$2,749 AUD
Retailer 4$2,781 AUD
Retailer 11$2,958 AUD
Retailer 21$3,098 AUD
Retailer 10$3,151 AUD
Helzberg Diamonds$5,587 AUD
Retailer 16$277,774 AUD
Retailer 15$439,454 AUD

10 data points across 24 retailers

23 retailers$679 AUD to $3,151 AUD

A
Cheapest Retailer
-
$679 AUD
$477 USD
A
Retailer 2
-
$759 AUD
$533 USD
View
Final sale: no returns
A
Retailer 3
-
$760 AUD
$534 USD
View
A
Retailer 4
-
$843 AUD
$592 USD
View
A
Retailer 5
-
$929 AUD
HK$5,100 HKD
View
A
Retailer 6
-
$964 AUD
£533 GBP
View
A
Retailer 7
-
$1,039 AUD
$730 USD
View
B+
Retailer 8
-
$1,142 AUD
$802 USD
View
A
Retailer 9
-
$1,238 AUD
€828 EUR
View
A
Retailer 10
-
$1,390 AUD
£769 GBP
View
A
Retailer 11
-
$1,519 AUD
$1,067 USD
View
A
Retailer 12
-
$1,812 AUD
ZAR 20,569 ZAR
View
B+
Retailer 13
-
$2,265 AUD
$1,591 USD
View
B+
Retailer 14
-
$2,699 AUD
SGD 2,562 SGD
View
B+
Retailer 15
-
$2,707 AUD
$1,902 USD
View
B+
Retailer 16
-
$2,749 AUD
$1,931 USD
View
B+
Retailer 17
-
$2,781 AUD
$1,954 USD
View
B+
Retailer 18
-
$2,958 AUD
$2,078 USD
View
B+
Retailer 19
-
$3,098 AUD
£1,714 GBP
View
B+
Retailer 20
-
$3,151 AUD
$2,214 USD
View
Most Expensive
Helzberg Diamonds
ZXZOKGMLLMKN · Oct 7
$5,587 AUD
$3,925 USD
View
Price last confirmed 22 days ago
20 more retailers have this diamond
Prices start from $679 AUDSave up to $2,472 AUD

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
$679 AUD