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Round|Lab Grown|IGI

1.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG675550843

Shape and cutting style on the report: Round brilliant

Certificate IGI LG675550843

Diamond specifications and retailer prices

From $269 NZD
$151 USD
As of October 29, 2026
Save $1,579 NZD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,848 NZD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.09ct lab-grown round diamond

This 1.09ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG675550843 or 675550843. Listed at 15 retailers as of October 29, 2026, with prices from $269 to $1,848, a $1,579 spread on the same certified stone. Reve Diamonds lists it at $1,848. 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

1.09
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG675550843
Dimensions6.65 × 6.63 × 4.05 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.65 mm6.63 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG675550843
Side View
Table 59.0%Crown 33.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.0%

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 29
Current: $652 NZD|Low: $269 NZD|High: $1,848 NZD|Avg: $722 NZD|-9.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Reve Diamonds
October 30, 2026
Retailer 4$269 NZD
Retailer 2$299 NZD
Retailer 3$312 NZD
Retailer 14$333 NZD
Retailer 6$370 NZD
Retailer 12$552 NZD
Retailer 7$579 NZD
Retailer 10$612 NZD
Retailer 1$652 NZD
Retailer 9$906 NZD
Retailer 13$1,072 NZD
Retailer 11$1,132 NZD
Retailer 5$1,171 NZD
Retailer 8$1,569 NZD
Reve Diamonds$1,848 NZD

43 data points across 15 retailers

15 retailers$269 NZD to $1,848 NZD

A
Cheapest Retailer
-
$269 NZD
$151 USD
A
Retailer 2
-
$299 NZD
$168 USD
View
Final sale: no returns
A
Retailer 3
-
$312 NZD
$175 USD
View
A
Retailer 4
-
$333 NZD
$187 USD
View
A
Retailer 5
-
$370 NZD
$208 USD
View
A
Retailer 6
-
$552 NZD
$310 USD
View
A
Retailer 7
-
$579 NZD
£256 GBP
View
A
Retailer 8
-
$612 NZD
$344 USD
View
A
Retailer 9
-
$652 NZD
£288 GBP
View
B+
Retailer 10
-
$906 NZD
$509 USD
View
B
Retailer 11
-
$1,072 NZD
$602 USD
View
B
Retailer 12
-
$1,132 NZD
$636 USD
View
B
Retailer 13
-
$1,171 NZD
$658 USD
View
B
Retailer 14
-
$1,569 NZD
£694 GBP
View
Most Expensive
B
Reve Diamonds
5A1831A79 · Oct 30
$1,848 NZD
$1,038 USD
View
14 more retailers have this diamond
Prices start from $269 NZDSave up to $1,579 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
1.09ct Round
$269 NZD