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1.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG781611922

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781611922

Diamond specifications and retailer prices

From $263 NZD
As of November 5, 2026
Save $1,566 NZD (86%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $1,829 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 LG781611922 or 781611922. Listed at 22 retailers as of November 5, 2026, with prices from $263 to $1,829, a $1,566 spread on the same certified stone. Reve Diamonds lists it at $1,829. 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 angle35.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781611922
Dimensions6.54 × 6.49 × 4.03 mm
L/W Ratio1.01
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
6.54 mm6.49 mm1.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781611922
Side View
Table 55.0%Crown 35.3°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $639 NZD|Low: $261 NZD|High: $1,829 NZD|Avg: $764 NZD|+9.8%
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
Reve Diamonds
November 6, 2026
Retailer 6$263 NZD
Retailer 13$294 NZD
Retailer 14$306 NZD
Retailer 2$327 NZD
Retailer 4$327 NZD
Retailer 8$559 NZD
Retailer 3$603 NZD
Retailer 1$639 NZD
Retailer 9$685 NZD
Retailer 15$763 NZD
Retailer 7$1,050 NZD
Retailer 10$1,110 NZD
Retailer 5$1,147 NZD
Retailer 11$1,174 NZD
Retailer 12$1,528 NZD
Reve Diamonds$1,829 NZD

46 data points across 16 retailers

22 retailers$263 NZD to $1,829 NZD

Retailer 1
-
$261 NZD
Price last confirmed 45 days ago
A
Retailer 2
-
$263 NZD
View
A
Retailer 3
-
$294 NZD
View
Final sale: no returns
Retailer 4
-
$302 NZD
View
Price last confirmed 66 days ago
A
Retailer 5
-
$306 NZD
View
Retailer 6
-
$320 NZD
View
Price last confirmed 45 days ago
Retailer 7
-
$327 NZD
View
Price last confirmed 12 days ago
A
Retailer 8
-
$327 NZD
View
A
Retailer 9
-
$525 NZD
View
A
Retailer 10
-
$559 NZD
View
A
Retailer 11
-
$603 NZD
View
B+
Retailer 12
-
$639 NZD
View
B+
Retailer 13
-
$685 NZD
View
B+
Retailer 14
-
$763 NZD
View
B+
Retailer 15
-
$882 NZD
View
Retailer 16
-
$1,042 NZD
View
Price last confirmed 46 days ago
B
Retailer 17
-
$1,050 NZD
View
B
Retailer 18
-
$1,110 NZD
View
B
Retailer 19
-
$1,147 NZD
View
B
Retailer 20
-
$1,174 NZD
View
Retailer 21
-
$1,528 NZD
View
Price last confirmed 11 days ago
Most Expensive
B
Reve Diamonds
72F766AF4 · Nov 6
$1,829 NZD
$1,028 USD
View
21 more retailers have this diamond
Prices start from $263 NZDSave up to $1,566 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
$263 NZD