Radiant|Lab Grown|IGI

3.11ct E VVS1 Radiant Lab Grown Diamond

EX • E/VVS1 • IGI LG815648781

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

Certificate IGI LG815648781

Diamond specifications and retailer prices

From $1,100 NZD
$620 USD
As of October 30, 2026
Save $5,305 NZD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,405 NZD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.11ct lab-grown radiant diamond

This 3.11ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG815648781 or 815648781. Listed at 16 retailers as of October 28, 2026, with prices from $1,100 to $6,405, a $5,305 spread on the same certified stone. Rare Carat lists it at $6,405. 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

3.11
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815648781
Dimensions11.31 × 6.99 × 4.40 mm
L/W Ratio1.62
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.31 mm6.99 mm3.11 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815648781
Side View
Table 68.0%Crown 43.6°Girdle: MediumPavilion 31.5°Culet: NoneDepth 62.9%

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 30
Current: $6,405 NZD|Low: $1,100 NZD|High: $6,405 NZD|Avg: $2,942 NZD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 10$1,100 NZD
Retailer 4$1,464 NZD
Retailer 6$1,647 NZD
Retailer 7$1,798 NZD
Retailer 9$1,847 NZD
Retailer 13$1,908 NZD
Retailer 11$2,573 NZD
Retailer 15$2,657 NZD
Retailer 2$3,144 NZD
Retailer 8$3,272 NZD
Retailer 12$3,848 NZD
Retailer 3$3,939 NZD
Retailer 14$3,952 NZD
Retailer 5$5,340 NZD
Rare Carat$6,405 NZD

21 data points across 15 retailers

16 retailers$1,100 NZD to $6,405 NZD

A
Cheapest Retailer
-
$1,100 NZD
$620 USD
Final sale: no returns
A
Retailer 2
-
$1,464 NZD
$825 USD
View
B+
Retailer 3
-
$1,647 NZD
$928 USD
View
Retailer 4
-
$1,798 NZD
€965 EUR
View
Price last confirmed 7 days ago
A
Retailer 5
-
$1,847 NZD
$1,041 USD
View
A
Retailer 6
-
$1,908 NZD
£847 GBP
View
A
Retailer 7
-
$2,573 NZD
A$2,231 AUD
View
A
Retailer 8
-
$2,657 NZD
ZAR 24,196 ZAR
View
A
Retailer 9
-
$3,144 NZD
$1,772 USD
View
A
Retailer 10
-
$3,272 NZD
$1,844 USD
View
B+
Retailer 11
-
$3,848 NZD
SGD 2,931 SGD
View
B+
Retailer 12
-
$3,939 NZD
$2,220 USD
View
B+
Retailer 13
-
$3,952 NZD
$2,227 USD
View
Retailer 14
-
$5,163 NZD
A$4,477 AUD
View
Price last confirmed 22 days ago
B+
Retailer 15
-
$5,340 NZD
£2,370 GBP
View
Most Expensive
B
Rare Carat
CN212-34A · Oct 28
$6,405 NZD
$3,610 USD
View
15 more retailers have this diamond
Prices start from $1,100 NZDSave up to $5,305 NZD

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
3.11ct Radiant
$1,100 NZD