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Asscher|Lab Grown|IGI

4.51ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG719576944

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG719576944

Diamond specifications and retailer prices

From $2,612 NZD
HK$11,500 HKD
As of October 30, 2026
Save $4,942 NZD (65%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $7,554 NZD at Michael Trio · As of October 29, 2026
View at Michael Trio

About this 4.51ct lab-grown asscher diamond

This 4.51ct lab-grown asscher sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG719576944 or 719576944. Listed at 5 retailers as of October 29, 2026, with prices from $2,612 to $7,554, a $4,942 spread on the same certified stone. Michael Trio lists it at $7,554. 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

4.51
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG719576944
Dimensions8.92 × 8.91 × 6.01 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.92 mm8.91 mm4.51 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG719576944
Side View
Table 67.0%Crown 38.1°Girdle: ThickPavilion 40.4°Culet: NoneDepth 67.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $7,554 NZD|Low: $2,504 NZD|High: $12,527 NZD|Avg: $7,807 NZD|-14.1%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 4$2,612 NZD
Retailer 5$2,614 NZD
Retailer 3$3,270 NZD
Retailer 2$7,434 NZD
Michael Trio$7,554 NZD
Retailer 6$10,096 NZD
Retailer 7$12,118 NZD
Retailer 8$12,118 NZD

16 data points across 8 retailers

5 retailers$2,612 NZD to $7,554 NZD

B+
Cheapest Retailer
-
$2,612 NZD
HK$11,500 HKD
B+
Retailer 2
-
$2,614 NZD
$1,473 USD
View
B+
Retailer 3
-
$3,270 NZD
€1,755 EUR
View
B
Retailer 4
-
$7,434 NZD
$4,190 USD
View
Most Expensive
B
Michael Trio
8234432100 · Oct 29
$7,554 NZD
SGD 5,753 SGD
View
4 more retailers have this diamond
Prices start from $2,612 NZDSave up to $4,942 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.

B+
4.51ct Asscher
$2,612 NZD