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Emerald|Lab Grown|IGI

6.57ct E VS1 Emerald Lab Grown Diamond

ID • E/VS1 • IGI LG670409028

Shape and cutting style on the report: Emerald cut

Certificate IGI LG670409028

Diamond specifications and retailer prices

From $2,523 NZD
$1,417 USD
As of October 30, 2026
Save $14,837 NZD (85%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $26,797 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 6.57ct lab-grown emerald diamond

This 6.57ct lab-grown emerald sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG670409028 or 670409028. Listed at 22 retailers as of October 29, 2026, with a 588% 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

6.57
Carat
E
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.3°
Pavilion angle37.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670409028
Dimensions8.51 × 8.51 × 5.76 mm
L/W Ratio1.00
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.51 mm8.51 mm6.57 ctE / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670409028
Side View
Table 64.0%Crown 44.3°Girdle: MED-STKPavilion 37.4°Culet: LargeDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $26,797 NZD|Low: $2,744 NZD|High: $27,616 NZD|Avg: $7,975 NZD|-3.0%
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 30, 2026
Retailer 6$2,744 NZD
Retailer 16$2,824 NZD
Retailer 14$3,232 NZD
Retailer 7$3,374 NZD
Retailer 2$4,575 NZD
Retailer 15$5,311 NZD
Retailer 12$5,995 NZD
Retailer 9$6,250 NZD
Retailer 8$7,788 NZD
Retailer 4$7,884 NZD
Retailer 3$8,523 NZD
Retailer 5$8,606 NZD
Retailer 10$9,273 NZD
Retailer 13$10,247 NZD
Retailer 11$17,360 NZD
Brilliant Earth$26,797 NZD

43 data points across 16 retailers

22 retailers$2,523 NZD to $17,360 NZD

A
Cheapest Retailer
-
$2,523 NZD
$1,417 USD
A
Retailer 2
-
$2,744 NZD
$1,541 USD
View
A
Retailer 3
-
$2,824 NZD
$1,586 USD
View
Final sale: no returns
A
Retailer 4
-
$2,925 NZD
$1,643 USD
View
Retailer 5
-
$2,925 NZD
$1,643 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$3,232 NZD
$1,815 USD
View
A
Retailer 7
-
$4,117 NZD
$2,312 USD
View
A
Retailer 8
-
$4,421 NZD
$2,483 USD
View
A
Retailer 9
-
$4,575 NZD
£2,023 GBP
View
B+
Retailer 10
-
$5,311 NZD
$2,983 USD
View
Retailer 11
-
$5,995 NZD
A$5,180 AUD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$6,054 NZD
$3,400 USD
View
B+
Retailer 13
-
$6,250 NZD
ZAR 56,708 ZAR
View
B+
Retailer 14
-
$7,788 NZD
£3,444 GBP
View
B
Retailer 15
-
$7,884 NZD
$4,428 USD
View
B
Retailer 16
-
$8,523 NZD
$4,787 USD
View
Retailer 17
-
$8,606 NZD
A$7,436 AUD
View
Price last confirmed 21 days ago
B
Retailer 18
-
$9,273 NZD
£4,101 GBP
View
B
Retailer 19
-
$10,247 NZD
$5,755 USD
View
B
Retailer 20
-
$11,397 NZD
$6,401 USD
View
B
Retailer 21
-
$17,360 NZD
$9,750 USD
View
Most Expensive
Brilliant Earth
18600082A · Oct 29
$26,797 NZD
$15,050 USD
View
Price under review
21 more retailers have this diamond
Prices start from $2,523 NZDSave up to $14,837 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
6.57ct Emerald
$2,523 NZD