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Oval|Lab Grown|IGI

3.07ct G SI1 Oval Lab Grown Diamond

EX • G/SI1 • IGI LG678584138

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG678584138

Diamond specifications and retailer prices

From $1,100 NZD
As of November 1, 2026
Save $2,940 NZD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,041 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.07ct lab-grown oval diamond

This 3.07ct lab-grown oval 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 LG678584138 or 678584138. Listed at 16 retailers as of October 31, 2026, with prices from $1,100 to $4,041, a $2,940 spread on the same certified stone. Brilliant Earth lists it at $4,041. 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

3.07
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678584138
Dimensions12.07 × 8.24 × 5.06 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.07 mm8.24 mm3.07 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678584138
Side View
Table 60.0%Crown 33.8°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 61.4%

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 1
Current: $4,041 NZD|Low: $660 NZD|High: $4,041 NZD|Avg: $1,719 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
Retailer 14
Retailer 15
Retailer 16
November 1, 2026
Retailer 4$660 NZD
Retailer 12$756 NZD
Retailer 3$767 NZD
Retailer 7$888 NZD
Retailer 8$888 NZD
Retailer 15$1,091 NZD
Retailer 11$1,100 NZD
Retailer 13$1,389 NZD
Retailer 2$1,477 NZD
Retailer 9$1,539 NZD
Retailer 16$1,963 NZD
Retailer 10$2,056 NZD
Retailer 14$2,634 NZD
Retailer 6$3,427 NZD
Retailer 5$3,471 NZD
Brilliant Earth$4,041 NZD

41 data points across 16 retailers

16 retailers$1,100 NZD to $4,041 NZD

Retailer 1
-
$660 NZD
Price last confirmed 10 days ago
Retailer 2
-
$767 NZD
View
Price last confirmed 10 days ago
Retailer 3
-
$888 NZD
View
Price last confirmed 12 days ago
Retailer 4
-
$888 NZD
View
Price last confirmed 12 days ago
Retailer 5
-
$1,091 NZD
View
Price last confirmed 4 days ago
B+
Retailer 6
-
$1,100 NZD
View
A
Retailer 7
-
$1,389 NZD
View
A
Retailer 8
-
$1,477 NZD
View
A
Retailer 9
-
$1,539 NZD
View
B+
Retailer 10
-
$1,963 NZD
View
B+
Retailer 11
-
$2,056 NZD
View
Retailer 12
-
$2,634 NZD
View
Price last confirmed 9 days ago
Retailer 13
-
$3,427 NZD
View
Price last confirmed 16 days ago
Retailer 14
-
$3,471 NZD
View
Price last confirmed 11 days ago
Retailer 15
-
$4,041 NZD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
17470963A · Oct 31
$4,041 NZD
$2,240 USD
View
15 more retailers have this diamond
Prices start from $1,100 NZDSave up to $2,940 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
3.07ct Oval
$1,100 NZD