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Round|Lab Grown|IGI

5.91ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG839618988

Shape and cutting style on the report: Round brilliant

Certificate IGI LG839618988

Diamond specifications and retailer prices

From $1,530 AUD
$1,075 USD
As of October 29, 2026
Save $8,967 AUD (85%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $10,497 AUD at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 5.91ct lab-grown round diamond

This 5.91ct lab-grown round sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG839618988 or 839618988. Listed at 5 retailers as of October 29, 2026, with prices from $1,530 to $10,497, a $8,967 spread on the same certified stone. Frank Darling lists it at $10,497. 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

5.91
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839618988
Dimensions11.64 × 11.73 × 7.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.64 mm11.73 mm5.91 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839618988
Side View
Table 61.0%Crown 33.7°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.8%

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: Oct 29
Current: $10,497 AUD|Low: $1,530 AUD|High: $10,499 AUD|Avg: $4,873 AUD|-0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 27, 2026
Retailer 3$1,530 AUD
Retailer 4$2,080 AUD
Retailer 6$2,449 AUD
Retailer 2$4,350 AUD
Retailer 5$7,729 AUD
Frank Darling$10,497 AUD

7 data points across 6 retailers

5 retailers$1,530 AUD to $10,497 AUD

A
Cheapest Retailer
-
$1,530 AUD
$1,075 USD
Final sale: no returns
B+
Retailer 2
-
$2,080 AUD
$1,461 USD
View
B+
Retailer 3
-
$4,350 AUD
$3,056 USD
View
B
Retailer 4
-
$7,729 AUD
$5,430 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Frank Darling
100198203844KD · Oct 29
$10,497 AUD
$7,374 USD
View
4 more retailers have this diamond
Prices start from $1,530 AUDSave up to $8,967 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
5.91ct Round
$1,530 AUD