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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 HK$4,781 HKD
As of November 1, 2026
Save HK$12,775 HKD (73%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$17,556 HKD 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 HK$4,781 to HK$17,556, a HK$12,775 spread on the same certified stone. Brilliant Earth lists it at HK$17,556. 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: HK$17,556 HKD|Low: HK$2,868 HKD|High: HK$17,556 HKD|Avg: HK$7,468 HKD
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 4HK$2,868 HKD
Retailer 12HK$3,284 HKD
Retailer 3HK$3,331 HKD
Retailer 7HK$3,856 HKD
Retailer 8HK$3,856 HKD
Retailer 15HK$4,742 HKD
Retailer 11HK$4,781 HKD
Retailer 13HK$6,035 HKD
Retailer 2HK$6,419 HKD
Retailer 9HK$6,685 HKD
Retailer 16HK$8,527 HKD
Retailer 10HK$8,935 HKD
Retailer 14HK$11,443 HKD
Retailer 6HK$14,891 HKD
Retailer 5HK$15,079 HKD
Brilliant EarthHK$17,556 HKD

41 data points across 16 retailers

16 retailersHK$4,781 HKD to HK$17,556 HKD

Retailer 1
-
HK$2,868 HKD
Price last confirmed 10 days ago
Retailer 2
-
HK$3,331 HKD
View
Price last confirmed 10 days ago
Retailer 3
-
HK$3,856 HKD
View
Price last confirmed 12 days ago
Retailer 4
-
HK$3,856 HKD
View
Price last confirmed 12 days ago
Retailer 5
-
HK$4,742 HKD
View
Price last confirmed 4 days ago
B+
Retailer 6
-
HK$4,781 HKD
View
A
Retailer 7
-
HK$6,035 HKD
View
A
Retailer 8
-
HK$6,419 HKD
View
A
Retailer 9
-
HK$6,685 HKD
View
B+
Retailer 10
-
HK$8,527 HKD
View
B+
Retailer 11
-
HK$8,935 HKD
View
Retailer 12
-
HK$11,443 HKD
View
Price last confirmed 9 days ago
Retailer 13
-
HK$14,891 HKD
View
Price last confirmed 16 days ago
Retailer 14
-
HK$15,079 HKD
View
Price last confirmed 11 days ago
Retailer 15
-
HK$17,556 HKD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
17470963A · Oct 31
HK$17,556 HKD
$2,240 USD
View
15 more retailers have this diamond
Prices start from HK$4,781 HKDSave up to HK$12,775 HKD

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
HK$4,781 HKD