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Round|Lab Grown|IGI

1.05ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG766618328

Shape and cutting style on the report: Round brilliant

Certificate IGI LG766618328

Diamond specifications and retailer prices

From $247 NZD
As of November 5, 2026
Save $1,530 NZD (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,777 NZD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.05ct lab-grown round diamond

This 1.05ct 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 LG766618328 or 766618328. Listed at 19 retailers as of November 4, 2026, with prices from $247 to $1,777, a $1,530 spread on the same certified stone. Reve Diamonds lists it at $1,777. 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

1.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766618328
Dimensions6.61 × 6.59 × 3.97 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
6.61 mm6.59 mm1.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766618328
Side View
Table 59.0%Crown 33.4°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.1%

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: Nov 5
Current: $512 NZD|Low: $247 NZD|High: $1,786 NZD|Avg: $739 NZD|+4.7%
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
Retailer 15
Retailer 16
Retailer 17
Reve Diamonds
November 6, 2026
Retailer 17$247 NZD
Retailer 4$276 NZD
Retailer 15$286 NZD
Retailer 5$306 NZD
Retailer 16$306 NZD
Retailer 1$512 NZD
Retailer 11$537 NZD
Retailer 6$573 NZD
Retailer 13$726 NZD
Retailer 14$729 NZD
Retailer 12$783 NZD
Retailer 7$852 NZD
Retailer 9$872 NZD
Retailer 3$879 NZD
Retailer 2$986 NZD
Retailer 8$1,083 NZD
Retailer 10$1,428 NZD
Reve Diamonds$1,777 NZD

46 data points across 18 retailers

19 retailers$247 NZD to $1,777 NZD

A
Cheapest Retailer
-
$247 NZD
A
Retailer 2
-
$276 NZD
View
Final sale: no returns
A
Retailer 3
-
$286 NZD
View
A
Retailer 4
-
$306 NZD
View
Retailer 5
-
$306 NZD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$512 NZD
View
A
Retailer 7
-
$514 NZD
View
A
Retailer 8
-
$537 NZD
View
B+
Retailer 9
-
$573 NZD
View
B+
Retailer 10
-
$726 NZD
View
Retailer 11
-
$729 NZD
View
Price last confirmed 12 days ago
B+
Retailer 12
-
$783 NZD
View
B+
Retailer 13
-
$852 NZD
View
B+
Retailer 14
-
$872 NZD
View
B+
Retailer 15
-
$879 NZD
View
B+
Retailer 16
-
$986 NZD
View
B
Retailer 17
-
$1,083 NZD
View
B
Retailer 18
-
$1,428 NZD
View
Most Expensive
B
Reve Diamonds
DDBB40C22 · Nov 4
$1,777 NZD
$999 USD
View
18 more retailers have this diamond
Prices start from $247 NZDSave up to $1,530 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
1.05ct Round
$247 NZD