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Emerald|Lab Grown|IGI

2.51ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG642474445

Shape and cutting style on the report: Emerald cut

Certificate IGI LG642474445

Diamond specifications and retailer prices

From $758 NZD
$427 USD
As of November 1, 2026
Save $2,262 NZD (75%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $3,454 NZD at MOH London · As of October 25, 2026
View at MOH London

About this 2.51ct lab-grown emerald diamond

This 2.51ct lab-grown emerald sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG642474445 or 642474445. Listed at 8 retailers as of October 31, 2026, with a 299% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

2.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle24°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG642474445
Dimensions9.03 × 6.20 × 4.37 mm
L/W Ratio1.46
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.03 mm6.20 mm2.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG642474445
Side View
Table 62.0%Crown 24°Girdle: MED-STKPavilion 38.7°Culet: LNGDepth 70.5%

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: Nov 1
Current: $3,454 NZD|Low: $607 NZD|High: $3,493 NZD|Avg: $2,006 NZD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3$758 NZD
Retailer 6$848 NZD
Retailer 8$848 NZD
Retailer 2$1,198 NZD
Retailer 7$1,482 NZD
Retailer 10$1,623 NZD
Retailer 5$2,635 NZD
Retailer 4$3,020 NZD
Retailer 9$3,220 NZD
MOH London$3,454 NZD

24 data points across 10 retailers

8 retailers$758 NZD to $3,020 NZD

A
Cheapest Retailer
-
$758 NZD
$427 USD
A
Retailer 2
-
$848 NZD
$478 USD
View
A
Retailer 3
-
$848 NZD
$478 USD
View
Final sale: no returns
A
Retailer 4
-
$1,198 NZD
$675 USD
View
B+
Retailer 5
-
$1,482 NZD
$835 USD
View
B
Retailer 6
-
$2,635 NZD
$1,485 USD
View
B
Retailer 7
-
$3,020 NZD
$1,702 USD
View
Most Expensive
MOH London
LG642474445 · Oct 25
$3,454 NZD
£1,533 GBP
View
Price last confirmed 8 days ago
7 more retailers have this diamond
Prices start from $758 NZDSave up to $2,262 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
2.51ct Emerald
$758 NZD