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Round|Lab Grown|IGI

5.09ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG771657233

Shape and cutting style on the report: Round brilliant

Certificate IGI LG771657233

Diamond specifications and retailer prices

From $1,024 AUD
$719 USD
As of October 26, 2026
Save $3,589 AUD (78%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,690 AUD at MOH London · As of October 21, 2026
View at MOH London

About this 5.09ct lab-grown round diamond

This 5.09ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG771657233 or 771657233. Listed at 17 retailers as of October 26, 2026, with a 351% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.09
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771657233
Dimensions11.12 × 11.07 × 6.80 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.12 mm11.07 mm5.09 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771657233
Side View
Table 57.0%Crown 34.2°Girdle: MediumPavilion 41°Culet: NoneDepth 61.3%

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 26
Current: $4,690 AUD|Low: $984 AUD|High: $5,054 AUD|Avg: $2,235 AUD|-0.7%
MOH London
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
October 31, 2026
Retailer 15$1,024 AUD
Retailer 5$1,115 AUD
Retailer 7$1,146 AUD
Retailer 3$1,189 AUD
Retailer 11$1,438 AUD
Retailer 14$1,701 AUD
Retailer 4$1,839 AUD
Retailer 2$1,851 AUD
Retailer 10$1,893 AUD
Retailer 8$2,501 AUD
Retailer 13$2,508 AUD
Retailer 6$3,340 AUD
Retailer 9$3,566 AUD
Retailer 12$4,612 AUD
MOH London$4,690 AUD

41 data points across 15 retailers

17 retailers$1,024 AUD to $4,612 AUD

A
Cheapest Retailer
-
$1,024 AUD
$719 USD
Retailer 2
-
$1,115 AUD
$783 USD
View
Price last confirmed 9 days ago
Retailer 3
-
$1,189 AUD
$835 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$1,438 AUD
$1,010 USD
View
B+
Retailer 5
-
$1,701 AUD
$1,195 USD
View
B+
Retailer 6
-
$1,839 AUD
$1,292 USD
View
B+
Retailer 7
-
$1,851 AUD
€1,238 EUR
View
B+
Retailer 8
-
$1,893 AUD
£1,047 GBP
View
B
Retailer 9
-
$2,501 AUD
$1,757 USD
View
B
Retailer 10
-
$2,508 AUD
$1,762 USD
View
B
Retailer 11
-
$2,619 AUD
$1,840 USD
View
Retailer 12
-
$3,340 AUD
$2,346 USD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$3,566 AUD
$2,505 USD
View
Retailer 14
-
$3,870 AUD
$2,719 USD
View
Price last confirmed 8 days ago
B
Retailer 15
-
$4,096 AUD
$2,877 USD
View
B
Retailer 16
-
$4,612 AUD
$3,240 USD
View
Most Expensive
MOH London
LG771657233 · Oct 21
$4,690 AUD
£2,594 GBP
View
Price last confirmed 12 days ago
16 more retailers have this diamond
Prices start from $1,024 AUDSave up to $3,589 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
5.09ct Round
$1,024 AUD