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Radiant|Lab Grown|IGI

1.60ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG821628174

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG821628174

Diamond specifications and retailer prices

From $308 NZD
$173 USD
As of October 27, 2026
Save $1,487 NZD (83%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,795 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.6ct lab-grown radiant diamond

This 1.6ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG821628174 or 821628174. Listed at 9 retailers as of October 27, 2026, with prices from $308 to $1,795, a $1,487 spread on the same certified stone. MOH London lists it at $1,795. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.60
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821628174
Dimensions8.10 × 5.76 × 3.89 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.10 mm5.76 mm1.60 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821628174
Side View
Table 65.0%Crown 44.4°Girdle: MediumPavilion 35.2°Culet: NoneDepth 67.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 27
Current: $1,795 NZD|Low: $296 NZD|High: $1,814 NZD|Avg: $989 NZD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5$308 NZD
Retailer 8$358 NZD
Retailer 2$492 NZD
Retailer 3$658 NZD
Retailer 9$986 NZD
Retailer 6$1,229 NZD
Retailer 4$1,298 NZD
Retailer 7$1,553 NZD
MOH London$1,795 NZD

30 data points across 9 retailers

9 retailers$308 NZD to $1,795 NZD

A
Cheapest Retailer
-
$308 NZD
$173 USD
A
Retailer 2
-
$358 NZD
$201 USD
View
A
Retailer 3
-
$492 NZD
£218 GBP
View
A
Retailer 4
-
$658 NZD
€352 EUR
View
B+
Retailer 5
-
$986 NZD
$554 USD
View
B
Retailer 6
-
$1,229 NZD
$690 USD
View
B
Retailer 7
-
$1,298 NZD
$729 USD
View
B
Retailer 8
-
$1,553 NZD
SGD 1,179 SGD
View
Price last confirmed 16 days ago
Most Expensive
B
MOH London
LG821628174 · Oct 29
$1,795 NZD
£794 GBP
View
8 more retailers have this diamond
Prices start from $308 NZDSave up to $1,487 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
1.60ct Radiant
$308 NZD