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Round|Lab Grown|IGI

1.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG670428283

Shape and cutting style on the report: Round brilliant

Certificate IGI LG670428283

Diamond specifications and retailer prices

From $261 NZD
As of November 5, 2026
Save $1,561 NZD (86%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $1,822 NZD at Reve Diamonds · As of November 6, 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG670428283 or 670428283. Listed at 24 retailers as of November 5, 2026, with prices from $261 to $1,822, a $1,561 spread on the same certified stone. Reve Diamonds lists it at $1,822. 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
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670428283
Dimensions6.58 × 6.56 × 3.99 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.58 mm6.56 mm1.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670428283
Side View
Table 58.0%Crown 33.9°Girdle: MediumPavilion 41°Culet: NoneDepth 60.8%

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: $553 NZD|Low: $251 NZD|High: $1,533 NZD|Avg: $703 NZD|+3.7%
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
November 6, 2026
Retailer 11$261 NZD
Retailer 7$292 NZD
Retailer 13$302 NZD
Retailer 2$324 NZD
Retailer 5$441 NZD
Retailer 1$553 NZD
Retailer 10$612 NZD
Retailer 6$635 NZD
Retailer 9$703 NZD
Retailer 12$1,042 NZD
Retailer 4$1,101 NZD
Retailer 3$1,156 NZD
Retailer 8$1,510 NZD

40 data points across 13 retailers

24 retailers$261 NZD to $1,822 NZD

A
Cheapest Retailer
-
$261 NZD
A
Retailer 2
-
$292 NZD
View
Final sale: no returns
A
Retailer 3
-
$302 NZD
View
Retailer 4
-
$320 NZD
View
Price last confirmed 66 days ago
Retailer 5
-
$324 NZD
View
Price last confirmed 12 days ago
A
Retailer 6
-
$324 NZD
View
B+
Retailer 7
-
$441 NZD
View
A
Retailer 8
-
$525 NZD
View
A
Retailer 9
-
$553 NZD
View
B+
Retailer 10
-
$612 NZD
View
A
Retailer 11
-
$635 NZD
View
B+
Retailer 12
-
$703 NZD
View
B+
Retailer 13
-
$703 NZD
View
B+
Retailer 14
-
$703 NZD
View
B+
Retailer 15
-
$703 NZD
View
B+
Retailer 16
-
$729 NZD
View
B+
Retailer 17
-
$729 NZD
View
Retailer 18
-
$761 NZD
View
Price last confirmed 11 days ago
B
Retailer 19
-
$1,042 NZD
View
B
Retailer 20
-
$1,101 NZD
View
B
Retailer 21
-
$1,140 NZD
View
B
Retailer 22
-
$1,156 NZD
View
B
Retailer 23
-
$1,510 NZD
View
Most Expensive
B
Reve Diamonds
61D252AC6 · Nov 6
$1,822 NZD
$1,024 USD
View
23 more retailers have this diamond
Prices start from $261 NZDSave up to $1,561 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
$261 NZD