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Emerald|Lab Grown|IGI

1.78ct D FL Emerald Lab Grown Diamond

ID • D/FL • IGI LG825660129

Shape and cutting style on the report: Emerald cut

Certificate IGI LG825660129

Diamond specifications and retailer prices

From $836 NZD
$471 USD
As of October 30, 2026
Save $6,874 NZD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $7,798 NZD at Rare Carat · As of October 14, 2026
View at Rare Carat

About this 1.78ct lab-grown emerald diamond

This 1.78ct lab-grown emerald sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825660129 or 825660129. Listed at 22 retailers as of October 28, 2026, with a 823% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825660129
Dimensions8.10 × 5.74 × 3.91 mm
L/W Ratio1.41
Culet sizeLarge
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.10 mm5.74 mm1.78 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825660129
Side View
Table 64.0%Crown 34.5°Girdle: MediumPavilion 40.6°Culet: LargeDepth 68.1%

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: $7,709 NZD|Low: $836 NZD|High: $10,114 NZD|Avg: $3,407 NZD|-2.0%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 30, 2026
Retailer 10$836 NZD
Retailer 6$937 NZD
Retailer 7$937 NZD
Retailer 20$1,036 NZD
Retailer 18$1,286 NZD
Retailer 15$1,585 NZD
Retailer 9$1,620 NZD
Retailer 14$1,720 NZD
Retailer 17$1,782 NZD
Retailer 19$2,417 NZD
Retailer 4$2,512 NZD
Retailer 11$3,292 NZD
Retailer 12$3,299 NZD
Retailer 3$3,334 NZD
Retailer 5$3,386 NZD
Retailer 13$3,643 NZD
Retailer 16$3,831 NZD
Retailer 8$4,516 NZD
Retailer 2$7,062 NZD
Rare Carat$7,709 NZD

35 data points across 20 retailers

22 retailers$836 NZD to $7,709 NZD

A
Cheapest Retailer
-
$836 NZD
$471 USD
A
Retailer 2
-
$937 NZD
$528 USD
View
Final sale: no returns
A
Retailer 3
-
$937 NZD
$528 USD
View
A
Retailer 4
-
$1,036 NZD
$584 USD
View
Retailer 5
-
$1,128 NZD
$636 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$1,286 NZD
$725 USD
View
A
Retailer 7
-
$1,585 NZD
€851 EUR
View
A
Retailer 8
-
$1,620 NZD
$913 USD
View
A
Retailer 9
-
$1,720 NZD
£763 GBP
View
A
Retailer 10
-
$1,782 NZD
ZAR 16,226 ZAR
View
B+
Retailer 11
-
$2,417 NZD
$1,362 USD
View
B+
Retailer 12
-
$2,512 NZD
$1,416 USD
View
B+
Retailer 13
-
$3,292 NZD
SGD 2,507 SGD
View
Retailer 14
-
$3,299 NZD
£1,464 GBP
View
Price last confirmed 9 days ago
B+
Retailer 15
-
$3,334 NZD
$1,879 USD
View
B
Retailer 16
-
$3,386 NZD
$1,908 USD
View
B+
Retailer 17
-
$3,643 NZD
$2,053 USD
View
B+
Retailer 18
-
$3,831 NZD
£1,700 GBP
View
B+
Retailer 19
-
$4,516 NZD
$2,545 USD
View
B
Retailer 20
-
$7,062 NZD
$3,980 USD
View
B
Retailer 21
-
$7,709 NZD
$4,345 USD
View
Most Expensive
Rare Carat
PD1296601JJ825 · Oct 14
$7,798 NZD
$4,395 USD
View
Price last confirmed 16 days ago
21 more retailers have this diamond
Prices start from $836 NZDSave up to $6,874 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
1.78ct Emerald
$836 NZD