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Round|Lab Grown|IGI

1.00ct E SI2 Round Lab Grown Diamond

GD • E/SI2 • IGI LG472170736

Shape and cutting style on the report: Round brilliant

Certificate IGI LG472170736

Diamond specifications and retailer prices

From $1,152 NZD
$647 USD
As of October 29, 2026
Save $1,031 NZD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,757 NZD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG472170736 or 472170736. Listed at 11 retailers as of October 29, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
E
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472170736
Dimensions6.38 × 6.36 × 3.76 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
6.38 mm6.36 mm1.00 ctE / SI2
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG472170736
Side View
Table 66.0%Crown 34.9°Girdle: THK-VTKPavilion 39.8°Culet: NoneDepth 59.0%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,128 NZD|Low: $841 NZD|High: $5,696 NZD|Avg: $1,955 NZD|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 10$841 NZD
Retailer 5$1,152 NZD
Retailer 9$1,253 NZD
Retailer 8$1,289 NZD
Retailer 6$1,353 NZD
Retailer 2$1,935 NZD
Retailer 1$2,128 NZD
Retailer 7$2,183 NZD
Retailer 4$3,413 NZD
Retailer 3$5,658 NZD

41 data points across 10 retailers

11 retailers$1,152 NZD to $2,183 NZD

B
Cheapest Retailer
-
$1,152 NZD
$647 USD
B
Retailer 2
-
$1,253 NZD
$704 USD
View
C
Retailer 3
-
$1,289 NZD
$724 USD
View
Final sale: no returns
C
Retailer 4
-
$1,335 NZD
$750 USD
View
Retailer 5
-
$1,335 NZD
$750 USD
View
Price last confirmed 13 days ago
C
Retailer 6
-
$1,353 NZD
$760 USD
View
C
Retailer 7
-
$2,128 NZD
£941 GBP
View
C
Retailer 8
-
$2,183 NZD
$1,226 USD
View
Retailer 9
-
$3,413 NZD
$1,917 USD
View
Price under review
Most Expensive
NZ Jewellers
bc0257dc-3fa3-443c-8849-9d448fc0ea8d · Oct 27
$3,757 NZD
$2,110 USD
View
Price under review
9 more retailers have this diamond
Prices start from $1,152 NZDSave up to $1,031 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
1.00ct Round
$1,152 NZD