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Round|Lab Grown|IGI

12.03ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG843678306

Shape and cutting style on the report: Round brilliant

Certificate IGI LG843678306

Diamond specifications and retailer prices

From $3,658 AUD
£2,018 GBP
As of November 2, 2026
Save $12,217 AUD (77%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $15,874 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.03ct lab-grown round diamond

This 12.03ct lab-grown round sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843678306 or 843678306. Listed at 12 retailers as of October 31, 2026, with prices from $3,658 to $15,874, a $12,217 spread on the same certified stone. Taylor and Hart lists it at $15,874. 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

12.03
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843678306
Dimensions14.91 × 14.86 × 8.87 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.91 mm14.86 mm12.03 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843678306
Side View
Table 58.0%Crown 33.6°Girdle: MediumPavilion 40.2°Culet: NoneDepth 59.6%

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 2
Current: $3,658 AUD|Low: $3,658 AUD|High: $15,874 AUD|Avg: $8,439 AUD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
November 2, 2026
Retailer 1$3,658 AUD
Retailer 11$4,396 AUD
Retailer 6$4,559 AUD
Retailer 4$6,127 AUD
Retailer 8$6,544 AUD
Retailer 7$7,050 AUD
Retailer 3$7,086 AUD
Retailer 5$8,438 AUD
Retailer 2$11,441 AUD
Retailer 9$12,701 AUD
Retailer 10$13,440 AUD
Taylor and Hart$15,874 AUD

11 data points across 12 retailers

12 retailers$3,658 AUD to $15,874 AUD

A
Cheapest Retailer
-
$3,658 AUD
£2,018 GBP
A
Retailer 2
-
$4,396 AUD
$3,081 USD
View
Final sale: no returns
A
Retailer 3
-
$4,559 AUD
$3,195 USD
View
A
Retailer 4
-
$6,127 AUD
£3,381 GBP
View
A
Retailer 5
-
$6,544 AUD
$4,586 USD
View
A
Retailer 6
-
$7,050 AUD
ZAR 79,824 ZAR
View
A
Retailer 7
-
$7,086 AUD
$4,966 USD
View
B+
Retailer 8
-
$8,438 AUD
View
B+
Retailer 9
-
$11,441 AUD
$8,018 USD
View
B
Retailer 10
-
$12,701 AUD
$8,901 USD
View
B
Retailer 11
-
$13,440 AUD
$9,419 USD
View
Most Expensive
B
Taylor and Hart
8N659ES · Oct 31
$15,874 AUD
$11,125 USD
View
11 more retailers have this diamond
Prices start from $3,658 AUDSave up to $12,217 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
12.03ct Round
$3,658 AUD