CaratHunter
Plans
Round|Lab Grown|IGI

1.09ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG803603992

Shape and cutting style on the report: Round brilliant

Certificate IGI LG803603992

Diamond specifications and retailer prices

From $264 NZD
$149 USD
As of October 29, 2026
Save $1,582 NZD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,847 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 LG803603992 or 803603992. Listed at 17 retailers as of October 29, 2026, with prices from $264 to $1,847, a $1,582 spread on the same certified stone. Reve Diamonds lists it at $1,847. 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 angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG803603992
Dimensions6.65 × 6.62 × 4.05 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
6.65 mm6.62 mm1.09 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG803603992
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.1%

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: $312 NZD|Low: $296 NZD|High: $1,847 NZD|Avg: $743 NZD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Reve Diamonds
October 30, 2026
Retailer 1$312 NZD
Retailer 4$332 NZD
Retailer 10$568 NZD
Retailer 7$582 NZD
Retailer 5$614 NZD
Retailer 6$654 NZD
Retailer 11$817 NZD
Retailer 3$859 NZD
Retailer 2$905 NZD
Retailer 8$1,174 NZD
Retailer 9$1,541 NZD
Reve Diamonds$1,847 NZD

36 data points across 12 retailers

17 retailers$264 NZD to $1,847 NZD

A
Cheapest Retailer
-
$264 NZD
$149 USD
A
Retailer 2
-
$312 NZD
$176 USD
View
A
Retailer 3
-
$328 NZD
$185 USD
View
A
Retailer 4
-
$328 NZD
$185 USD
View
A
Retailer 5
-
$332 NZD
$187 USD
View
Final sale: no returns
A
Retailer 6
-
$548 NZD
$309 USD
View
A
Retailer 7
-
$568 NZD
€305 EUR
View
A
Retailer 8
-
$582 NZD
£258 GBP
View
B+
Retailer 9
-
$614 NZD
$346 USD
View
B+
Retailer 10
-
$654 NZD
£290 GBP
View
B+
Retailer 11
-
$817 NZD
A$708 AUD
View
B+
Retailer 12
-
$859 NZD
$484 USD
View
Retailer 13
-
$905 NZD
$510 USD
View
Price last confirmed 14 days ago
B
Retailer 14
-
$1,054 NZD
$594 USD
View
B
Retailer 15
-
$1,174 NZD
$662 USD
View
B
Retailer 16
-
$1,541 NZD
£684 GBP
View
Most Expensive
B
Reve Diamonds
FDA9E6D5D · Oct 30
$1,847 NZD
$1,041 USD
View
16 more retailers have this diamond
Prices start from $264 NZDSave up to $1,582 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
$264 NZD