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Radiant|Lab Grown|IGI

3.15ct E VVS1 Radiant Lab Grown Diamond

EX • E/VVS1 • IGI LG821651330

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

Certificate IGI LG821651330

Diamond specifications and retailer prices

From $1,132 NZD
$636 USD
As of October 29, 2026
Save $5,375 NZD (83%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $6,508 NZD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 3.15ct lab-grown radiant diamond

This 3.15ct 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 LG821651330 or 821651330. Listed at 17 retailers as of October 28, 2026, with prices from $1,132 to $6,508, a $5,375 spread on the same certified stone. Rare Carat lists it at $6,508. 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

3.15
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.6°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821651330
Dimensions9.86 × 7.11 × 4.86 mm
L/W Ratio1.39
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.86 mm7.11 mm3.15 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821651330
Side View
Table 67.0%Crown 41.6°Girdle: MED-STKPavilion 35.6°Culet: NoneDepth 68.4%

Caratlytics Score

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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: $6,508 NZD|Low: $1,132 NZD|High: $6,508 NZD|Avg: $3,253 NZD|+1.5%
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
Retailer 16
October 30, 2026
Retailer 14$1,132 NZD
Retailer 10$1,487 NZD
Retailer 3$1,688 NZD
Retailer 9$1,945 NZD
Retailer 5$2,142 NZD
Retailer 7$2,697 NZD
Retailer 4$2,708 NZD
Retailer 6$3,123 NZD
Retailer 11$3,369 NZD
Retailer 12$3,636 NZD
Retailer 13$4,062 NZD
Retailer 8$4,118 NZD
Retailer 2$4,138 NZD
Retailer 15$5,001 NZD
Retailer 16$5,472 NZD
Rare Carat$6,508 NZD

22 data points across 16 retailers

17 retailers$1,132 NZD to $6,508 NZD

A
Cheapest Retailer
-
$1,132 NZD
$636 USD
Final sale: no returns
A
Retailer 2
-
$1,487 NZD
$835 USD
View
A
Retailer 3
-
$1,688 NZD
$948 USD
View
A
Retailer 4
-
$1,945 NZD
£860 GBP
View
A
Retailer 5
-
$2,142 NZD
€1,146 EUR
View
Retailer 6
-
$2,697 NZD
A$2,330 AUD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$2,708 NZD
ZAR 24,571 ZAR
View
A
Retailer 8
-
$3,123 NZD
$1,754 USD
View
A
Retailer 9
-
$3,369 NZD
$1,892 USD
View
B+
Retailer 10
-
$3,636 NZD
£1,608 GBP
View
B+
Retailer 11
-
$4,062 NZD
$2,281 USD
View
B+
Retailer 12
-
$4,118 NZD
$2,313 USD
View
B+
Retailer 13
-
$4,138 NZD
$2,324 USD
View
B+
Retailer 14
-
$5,001 NZD
SGD 3,796 SGD
View
Retailer 15
-
$5,245 NZD
A$4,532 AUD
View
Price last confirmed 21 days ago
B+
Retailer 16
-
$5,472 NZD
£2,420 GBP
View
Most Expensive
B
Rare Carat
CN215-15A · Oct 28
$6,508 NZD
$3,655 USD
View
16 more retailers have this diamond
Prices start from $1,132 NZDSave up to $5,375 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
3.15ct Radiant
$1,132 NZD