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Emerald|Lab Grown|IGI

1.78ct D FL Emerald Lab Grown Diamond

ID • D/FL • IGI LG840634464

Shape and cutting style on the report: Emerald cut

Certificate IGI LG840634464

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)
20 retailers carry this diamond
Most expensive: $7,709 NZD at Rare Carat · As of October 28, 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 LG840634464 or 840634464. Listed at 20 retailers as of October 28, 2026, with prices from $836 to $7,709, a $6,874 spread on the same certified stone. Rare Carat lists it at $7,709. 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 angle33.4°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840634464
Dimensions8.06 × 5.76 × 3.91 mm
L/W Ratio1.40
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
8.06 mm5.76 mm1.78 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840634464
Side View
Table 63.0%Crown 33.4°Girdle: MED-STKPavilion 38.9°Culet: LargeDepth 67.9%

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: $7,709 NZD|Avg: $2,803 NZD
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
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 10$836 NZD
Retailer 5$937 NZD
Retailer 6$937 NZD
Retailer 19$1,036 NZD
Retailer 8$1,473 NZD
Retailer 18$1,570 NZD
Retailer 15$1,585 NZD
Retailer 9$1,620 NZD
Retailer 14$1,720 NZD
Retailer 17$1,782 NZD
Retailer 2$2,417 NZD
Retailer 3$2,512 NZD
Retailer 11$3,292 NZD
Retailer 20$3,334 NZD
Retailer 4$3,386 NZD
Retailer 13$3,643 NZD
Retailer 16$3,831 NZD
Retailer 7$4,516 NZD
Retailer 12$6,088 NZD
Rare Carat$7,709 NZD

13 data points across 20 retailers

20 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
A
Retailer 5
-
$1,473 NZD
$830 USD
View
A
Retailer 6
-
$1,570 NZD
$885 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
B
Retailer 14
-
$3,334 NZD
$1,879 USD
View
B+
Retailer 15
-
$3,386 NZD
$1,908 USD
View
B+
Retailer 16
-
$3,643 NZD
$2,053 USD
View
B+
Retailer 17
-
$3,831 NZD
£1,700 GBP
View
B+
Retailer 18
-
$4,516 NZD
$2,545 USD
View
B
Retailer 19
-
$6,088 NZD
$3,431 USD
View
Most Expensive
B
Rare Carat
PE-254688 · Oct 28
$7,709 NZD
$4,345 USD
View
19 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