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Emerald|Lab Grown|IGI

1.91ct E IF Emerald Lab Grown Diamond

ID • E/IF • IGI LG578315529

Shape and cutting style on the report: Emerald cut

Certificate IGI LG578315529

Diamond specifications and retailer prices

From $691 NZD
$388 USD
As of October 27, 2026
Save $7,250 NZD (91%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $7,941 NZD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.91ct lab-grown emerald diamond

This 1.91ct lab-grown emerald sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG578315529 or 578315529. Listed at 26 retailers as of October 27, 2026, with prices from $691 to $7,941, a $7,250 spread on the same certified stone. Brilliant Earth lists it at $7,941. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.91
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG578315529
Dimensions5.83 × 5.83 × 3.87 mm
L/W Ratio1.00
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
5.83 mm5.83 mm1.91 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG578315529
Side View
Table 62.0%Crown 30.4°Girdle: MED-STKPavilion 40.6°Culet: LargeDepth 66.4%

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 27
Current: $7,941 NZD|Low: $691 NZD|High: $8,956 NZD|Avg: $2,869 NZD|-11.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
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Retailer 17
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Retailer 19
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Retailer 21
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Retailer 24
October 29, 2026
Retailer 23$691 NZD
Retailer 18$773 NZD
Retailer 16$775 NZD
Retailer 8$858 NZD
Retailer 9$858 NZD
Retailer 7$934 NZD
Retailer 22$1,122 NZD
Retailer 4$1,154 NZD
Retailer 24$1,321 NZD
Retailer 19$1,374 NZD
Retailer 21$1,474 NZD
Retailer 2$1,554 NZD
Retailer 13$1,991 NZD
Retailer 3$2,056 NZD
Retailer 6$2,496 NZD
Retailer 11$2,734 NZD
Retailer 12$2,756 NZD
Retailer 5$2,822 NZD
Retailer 15$2,823 NZD
Retailer 10$3,196 NZD
Retailer 17$3,335 NZD
Retailer 20$3,369 NZD
Retailer 14$3,472 NZD
Brilliant Earth$7,941 NZD

30 data points across 24 retailers

26 retailers$691 NZD to $7,941 NZD

A
Cheapest Retailer
-
$691 NZD
$388 USD
A
Retailer 2
-
$773 NZD
$434 USD
View
Final sale: no returns
A
Retailer 3
-
$775 NZD
$435 USD
View
A
Retailer 4
-
$858 NZD
$482 USD
View
A
Retailer 5
-
$858 NZD
$482 USD
View
A
Retailer 6
-
$934 NZD
HK$4,100 HKD
View
A
Retailer 7
-
$1,122 NZD
$630 USD
View
A
Retailer 8
-
$1,154 NZD
$648 USD
View
A
Retailer 9
-
$1,321 NZD
$742 USD
View
A
Retailer 10
-
$1,374 NZD
€735 EUR
View
A
Retailer 11
-
$1,474 NZD
ZAR 13,371 ZAR
View
A
Retailer 12
-
$1,554 NZD
£687 GBP
View
A
Retailer 13
-
$1,991 NZD
A$1,720 AUD
View
A
Retailer 14
-
$2,056 NZD
$1,155 USD
View
B+
Retailer 15
-
$2,496 NZD
£1,104 GBP
View
B+
Retailer 16
-
$2,734 NZD
SGD 2,075 SGD
View
B+
Retailer 17
-
$2,756 NZD
$1,548 USD
View
B+
Retailer 18
-
$2,822 NZD
$1,585 USD
View
B+
Retailer 19
-
$2,823 NZD
$1,586 USD
View
B+
Retailer 20
-
$3,000 NZD
$1,685 USD
View
B+
Retailer 21
-
$3,196 NZD
$1,795 USD
View
B+
Retailer 22
-
$3,223 NZD
$1,810 USD
View
Price last confirmed 43 days ago
B+
Retailer 23
-
$3,335 NZD
A$2,882 AUD
View
Price last confirmed 21 days ago
B+
Retailer 24
-
$3,369 NZD
£1,490 GBP
View
B+
Retailer 25
-
$3,472 NZD
$1,950 USD
View
Most Expensive
B
Brilliant Earth
18469400A · Oct 29
$7,941 NZD
$4,460 USD
View
25 more retailers have this diamond
Prices start from $691 NZDSave up to $7,250 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
1.91ct Emerald
$691 NZD