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Round|Lab Grown|IGI

5.51ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG831657892

Shape and cutting style on the report: Round brilliant

Certificate IGI LG831657892

Diamond specifications and retailer prices

From $1,403 AUD
HK$7,700 HKD
As of October 31, 2026
Save $2,652 AUD (65%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $6,157 AUD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 5.51ct lab-grown round diamond

This 5.51ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831657892 or 831657892. Listed at 9 retailers as of October 31, 2026, with a 189% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.51
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831657892
Dimensions11.24 × 11.33 × 6.92 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
11.24 mm11.33 mm5.51 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831657892
Side View
Table 61.0%Crown 35.8°Girdle: MED-STKPavilion 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 31
Current: $6,157 AUD|Low: $1,403 AUD|High: $6,242 AUD|Avg: $2,920 AUD|-1.4%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 25, 2026
Retailer 4$1,403 AUD
Retailer 6$1,764 AUD
Retailer 3$1,814 AUD
Retailer 7$1,910 AUD
Retailer 2$1,987 AUD
Retailer 8$3,009 AUD
Retailer 9$4,055 AUD
Retailer 5$4,643 AUD
Rare Carat$6,157 AUD

35 data points across 9 retailers

9 retailers$1,403 AUD to $4,055 AUD

A
Cheapest Retailer
-
$1,403 AUD
HK$7,700 HKD
A
Retailer 2
-
$1,764 AUD
$1,239 USD
View
Retailer 3
-
$1,814 AUD
£1,003 GBP
View
Price last confirmed 8 days ago
Retailer 4
-
$1,910 AUD
$1,342 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$1,987 AUD
€1,329 EUR
View
Retailer 6
-
$3,009 AUD
$2,114 USD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$4,055 AUD
$2,848 USD
View
Retailer 8
-
$4,643 AUD
£2,568 GBP
View
Price last confirmed 10 days ago
Most Expensive
Rare Carat
KI8926578KF831 · Oct 21
$6,157 AUD
$4,325 USD
View
Price last confirmed 10 days ago
8 more retailers have this diamond
Prices start from $1,403 AUDSave up to $2,652 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
5.51ct Round
$1,403 AUD