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Round|Lab Grown|IGI

20.09ct G VS2 Round Lab Grown Diamond

EX • G/VS2 • IGI LG795623742

Shape and cutting style on the report: Round brilliant

Certificate IGI LG795623742

Diamond specifications and retailer prices

From $11,751 AUD
£6,500 GBP
As of November 1, 2026
Save $36,708 AUD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $48,459 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.09ct lab-grown round diamond

This 20.09ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG795623742 or 795623742. Listed at 15 retailers as of October 31, 2026, with prices from $11,751 to $48,459, a $36,708 spread on the same certified stone. Brilliant Earth lists it at $48,459. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

20.09
Carat
G
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG795623742
Dimensions17.50 × 17.44 × 10.77 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
17.50 mm17.44 mm20.09 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG795623742
Side View
Table 58.0%Crown 33.1°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 61.7%

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: Nov 1
Current: $48,459 AUD|Low: $11,747 AUD|High: $48,459 AUD|Avg: $19,116 AUD
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
November 2, 2026
Retailer 7$11,751 AUD
Retailer 12$12,613 AUD
Retailer 3$13,117 AUD
Retailer 14$13,681 AUD
Retailer 5$14,632 AUD
Retailer 13$14,632 AUD
Retailer 9$14,635 AUD
Retailer 11$15,019 AUD
Retailer 10$16,017 AUD
Retailer 4$16,455 AUD
Retailer 2$17,587 AUD
Retailer 8$27,921 AUD
Retailer 6$33,826 AUD
Brilliant Earth$48,459 AUD

41 data points across 14 retailers

15 retailers$11,751 AUD to $48,459 AUD

A
Cheapest Retailer
-
$11,751 AUD
£6,500 GBP
A
Retailer 2
-
$12,613 AUD
$8,860 USD
View
B+
Retailer 3
-
$13,117 AUD
$9,214 USD
View
B+
Retailer 4
-
$13,681 AUD
$9,610 USD
View
B+
Retailer 5
-
$14,632 AUD
$10,278 USD
View
Retailer 6
-
$14,632 AUD
$10,278 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
$14,635 AUD
$10,280 USD
View
B+
Retailer 8
-
$15,019 AUD
$10,550 USD
View
B+
Retailer 9
-
$16,017 AUD
$11,251 USD
View
B+
Retailer 10
-
$16,455 AUD
$11,559 USD
View
B+
Retailer 11
-
$17,587 AUD
£9,728 GBP
View
B
Retailer 12
-
$27,921 AUD
€18,679 EUR
View
B
Retailer 13
-
$33,826 AUD
$23,761 USD
View
B
Retailer 14
-
$46,226 AUD
$32,471 USD
View
Most Expensive
B
Brilliant Earth
19979857A · Oct 31
$48,459 AUD
$34,040 USD
View
14 more retailers have this diamond
Prices start from $11,751 AUDSave up to $36,708 AUD

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
20.09ct Round
$11,751 AUD