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Oval|Lab Grown|IGI

3.91ct E VS1 Oval Lab Grown Diamond

EX • E/VS1 • IGI LG807603558

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG807603558

Diamond specifications and retailer prices

From $979 NZD
$552 USD
As of October 31, 2026
Save $5,523 NZD (85%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $8,818 NZD at Brilliant Earth · As of October 10, 2026
View at Brilliant Earth

About this 3.91ct lab-grown oval diamond

This 3.91ct lab-grown oval 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 LG807603558 or 807603558. Listed at 7 retailers as of October 28, 2026, with a 564% 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

3.91
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807603558
Dimensions12.43 × 8.89 × 5.54 mm
L/W Ratio1.40
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.43 mm8.89 mm3.91 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807603558
Side View
Table 61.0%Crown 34.9°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

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 31
Current: $8,818 NZD|Low: $678 NZD|High: $9,084 NZD|Avg: $3,091 NZD|-2.9%
Brilliant Earth
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 31, 2026
Retailer 6$678 NZD
Retailer 9$979 NZD
Retailer 12$1,164 NZD
Retailer 13$1,325 NZD
Retailer 5$1,348 NZD
Retailer 3$1,659 NZD
Retailer 2$1,738 NZD
Retailer 15$1,757 NZD
Retailer 4$2,782 NZD
Retailer 14$3,137 NZD
Retailer 16$3,362 NZD
Retailer 7$3,783 NZD
Retailer 8$3,981 NZD
Retailer 10$6,503 NZD
Retailer 11$8,605 NZD
Brilliant Earth$8,818 NZD

39 data points across 16 retailers

7 retailers$979 NZD to $6,503 NZD

A
Cheapest Retailer
-
$979 NZD
$552 USD
Final sale: no returns
A
Retailer 2
-
$1,738 NZD
£771 GBP
View
Retailer 3
-
$2,782 NZD
$1,568 USD
View
Price last confirmed 45 days ago
Retailer 4
-
$5,074 NZD
A$4,400 AUD
View
Price last confirmed 119 days ago
B
Retailer 5
-
$6,503 NZD
$3,665 USD
View
Retailer 6
-
$8,605 NZD
$4,850 USD
View
Price last confirmed 8 days ago
Most Expensive
Brilliant Earth
20100737A · Oct 10
$8,818 NZD
$4,970 USD
View
Price last confirmed 20 days ago
6 more retailers have this diamond
Prices start from $979 NZDSave up to $5,523 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
3.91ct Oval
$979 NZD