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Oval|Lab Grown|IGI

3.05ct D SI1 Oval Lab Grown Diamond

VG • D/SI1 • IGI LG720598342

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG720598342

Diamond specifications and retailer prices

From $743 NZD
$419 USD
As of October 29, 2026
Save $4,171 NZD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,915 NZD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 3.05ct lab-grown oval diamond

This 3.05ct lab-grown oval sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG720598342 or 720598342. Listed at 17 retailers as of October 28, 2026, with prices from $743 to $4,915, a $4,171 spread on the same certified stone. Brilliant Earth lists it at $4,915. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.05
Carat
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720598342
Dimensions11.50 × 8.17 × 5.20 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.50 mm8.17 mm3.05 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720598342
Side View
Table 62.0%Crown 34.2°Girdle: MED-STKPavilion 42°Culet: NoneDepth 63.6%

Caratlytics Score

How it works →
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: Oct 29
Current: $4,915 NZD|Low: $715 NZD|High: $5,057 NZD|Avg: $1,932 NZD|-2.8%
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
Retailer 14
October 31, 2026
Retailer 11$743 NZD
Retailer 5$832 NZD
Retailer 3$834 NZD
Retailer 6$923 NZD
Retailer 12$923 NZD
Retailer 8$1,180 NZD
Retailer 13$1,453 NZD
Retailer 2$1,520 NZD
Retailer 4$1,592 NZD
Retailer 10$2,214 NZD
Retailer 14$2,967 NZD
Retailer 7$3,407 NZD
Retailer 9$3,566 NZD
Brilliant Earth$4,915 NZD

42 data points across 14 retailers

17 retailers$743 NZD to $4,915 NZD

A
Cheapest Retailer
-
$743 NZD
$419 USD
A
Retailer 2
-
$832 NZD
$469 USD
View
Final sale: no returns
A
Retailer 3
-
$834 NZD
$470 USD
View
A
Retailer 4
-
$923 NZD
$520 USD
View
A
Retailer 5
-
$923 NZD
$520 USD
View
A
Retailer 6
-
$1,180 NZD
$665 USD
View
B+
Retailer 7
-
$1,453 NZD
$819 USD
View
A
Retailer 8
-
$1,520 NZD
£674 GBP
View
B+
Retailer 9
-
$1,592 NZD
$897 USD
View
B+
Retailer 10
-
$2,214 NZD
$1,248 USD
View
Retailer 11
-
$2,381 NZD
$1,342 USD
View
Price last confirmed 45 days ago
B
Retailer 12
-
$2,736 NZD
$1,542 USD
View
B
Retailer 13
-
$2,967 NZD
$1,672 USD
View
B
Retailer 14
-
$3,026 NZD
$1,705 USD
View
B
Retailer 15
-
$3,407 NZD
£1,512 GBP
View
B
Retailer 16
-
$3,566 NZD
$2,010 USD
View
Most Expensive
B
Brilliant Earth
15303630A · Oct 28
$4,915 NZD
$2,770 USD
View
16 more retailers have this diamond
Prices start from $743 NZDSave up to $4,171 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 Oval
$743 NZD