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3.05ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG575377641

Shape and cutting style on the report: Round brilliant

Certificate IGI LG575377641

Diamond specifications and retailer prices

From $1,157 NZD
$652 USD
As of October 28, 2026
Save $5,089 NZD (81%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,246 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.05ct lab-grown round diamond

This 3.05ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG575377641 or 575377641. Listed at 13 retailers as of October 28, 2026, with prices from $1,157 to $6,246, a $5,089 spread on the same certified stone. Do Amore Diamonds lists it at $6,246. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG575377641
Dimensions9.39 × 9.37 × 5.60 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.39 mm9.37 mm3.05 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG575377641
Side View
Table 60.0%Crown 33.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.7%

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 28
Current: $6,246 NZD|Low: $788 NZD|High: $6,246 NZD|Avg: $2,150 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 10$788 NZD
Retailer 3$900 NZD
Retailer 8$1,157 NZD
Retailer 5$1,162 NZD
Retailer 9$1,377 NZD
Retailer 2$1,581 NZD
Retailer 7$2,447 NZD
Retailer 6$2,936 NZD
Retailer 11$3,363 NZD
Retailer 4$3,556 NZD
Do Amore Diamonds$6,246 NZD

38 data points across 11 retailers

13 retailers$1,157 NZD to $6,246 NZD

Retailer 1
-
$704 NZD
$397 USD
Price last confirmed 22 days ago
Retailer 2
-
$873 NZD
$492 USD
View
Price last confirmed 21 days ago
Retailer 3
-
$889 NZD
$501 USD
View
Price last confirmed 43 days ago
B+
Retailer 4
-
$1,157 NZD
$652 USD
View
B+
Retailer 5
-
$1,162 NZD
$655 USD
View
A
Retailer 6
-
$1,377 NZD
$776 USD
View
A
Retailer 7
-
$1,581 NZD
£702 GBP
View
Retailer 8
-
$2,447 NZD
$1,379 USD
View
Price last confirmed 7 days ago
Retailer 9
-
$2,936 NZD
$1,655 USD
View
Price last confirmed 15 days ago
Retailer 10
-
$3,194 NZD
$1,800 USD
View
Price last confirmed 42 days ago
B
Retailer 11
-
$3,363 NZD
$1,895 USD
View
B
Retailer 12
-
$3,556 NZD
£1,578 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9B069C256 · Oct 29
$6,246 NZD
$3,520 USD
View
12 more retailers have this diamond
Prices start from $1,157 NZDSave up to $5,089 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
$1,157 NZD