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3.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG849665305

Shape and cutting style on the report: Round brilliant

Certificate IGI LG849665305

Diamond specifications and retailer prices

From $1,206 NZD
As of November 2, 2026
Save $3,775 NZD (76%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,981 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.05ct lab-grown round diamond

This 3.05ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG849665305 or 849665305. Listed at 12 retailers as of October 31, 2026, with prices from $1,206 to $4,981, a $3,775 spread on the same certified stone. Brilliant Earth lists it at $4,981. 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

3.05
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849665305
Dimensions9.37 × 9.40 × 5.65 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.37 mm9.40 mm3.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849665305
Side View
Table 58.0%Crown 33.2°Girdle: MediumPavilion 40.6°Culet: NoneDepth 60.2%

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 2
Current: $4,981 NZD|Low: $815 NZD|High: $4,981 NZD|Avg: $2,275 NZD
Brilliant Earth
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 2, 2026
Retailer 4$815 NZD
Retailer 2$1,206 NZD
Retailer 12$1,242 NZD
Retailer 7$1,245 NZD
Retailer 6$1,480 NZD
Retailer 8$1,505 NZD
Retailer 3$1,969 NZD
Retailer 10$2,535 NZD
Retailer 5$2,965 NZD
Retailer 13$3,312 NZD
Retailer 11$3,535 NZD
Retailer 9$3,593 NZD
Brilliant Earth$4,981 NZD

12 data points across 13 retailers

12 retailers$1,206 NZD to $4,981 NZD

A
Cheapest Retailer
-
$1,206 NZD
B+
Retailer 2
-
$1,242 NZD
View
A
Retailer 3
-
$1,245 NZD
View
A
Retailer 4
-
$1,480 NZD
View
Retailer 5
-
$1,505 NZD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,969 NZD
View
B+
Retailer 7
-
$2,535 NZD
View
B
Retailer 8
-
$2,965 NZD
View
B
Retailer 9
-
$3,312 NZD
View
Retailer 10
-
$3,535 NZD
View
Price last confirmed 12 days ago
Retailer 11
-
$3,593 NZD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
22239098A · Oct 31
$4,981 NZD
$2,800 USD
View
11 more retailers have this diamond
Prices start from $1,206 NZDSave up to $3,775 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
3.05ct Round
$1,206 NZD