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Oval|Lab Grown|IGI

3.78ct G VVS2 Oval Lab Grown Diamond

EX • G/VVS2 • IGI LG805685235

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG805685235

Diamond specifications and retailer prices

From $894 NZD
$504 USD
As of October 29, 2026
Save $6,936 NZD (89%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,830 NZD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 3.78ct lab-grown oval diamond

This 3.78ct lab-grown oval sits in the three to five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG805685235 or 805685235. Listed at 5 retailers as of October 29, 2026, with prices from $894 to $7,830, a $6,936 spread on the same certified stone. Helzberg Diamonds lists it at $7,830. 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

3.78
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805685235
Dimensions12.07 × 8.85 × 5.56 mm
L/W Ratio1.36
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.07 mm8.85 mm3.78 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805685235
Side View
Table 61.0%Crown 37.1°Girdle: MED-THKPavilion 40.5°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 29
Current: $7,830 NZD|Low: $871 NZD|High: $7,830 NZD|Avg: $2,638 NZD
Helzberg Diamonds
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
October 30, 2026
Retailer 8$894 NZD
Retailer 9$947 NZD
Retailer 11$1,000 NZD
Retailer 14$1,450 NZD
Retailer 10$1,478 NZD
Retailer 12$1,570 NZD
Retailer 2$1,702 NZD
Retailer 5$1,976 NZD
Retailer 4$2,441 NZD
Retailer 3$2,599 NZD
Retailer 13$3,104 NZD
Retailer 6$3,905 NZD
Retailer 7$6,112 NZD
Helzberg Diamonds$7,830 NZD

34 data points across 14 retailers

5 retailers$894 NZD to $7,830 NZD

A
Cheapest Retailer
-
$894 NZD
$504 USD
Final sale: no returns
A
Retailer 2
-
$1,702 NZD
£755 GBP
View
Retailer 3
-
$1,976 NZD
ZAR 17,994 ZAR
View
Price last confirmed 66 days ago
B
Retailer 4
-
$6,112 NZD
$3,445 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOGLMOLIJL · Oct 31
$7,830 NZD
$4,413 USD
View
4 more retailers have this diamond
Prices start from $894 NZDSave up to $6,936 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
3.78ct Oval
$894 NZD