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Round|Lab Grown|IGI

6.70ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG551208029

Shape and cutting style on the report: Round brilliant

Certificate IGI LG551208029

Diamond specifications and retailer prices

From $1,126 AUD
$791 USD
As of October 29, 2026
Save $3,797 AUD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $4,923 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 6.7ct lab-grown round diamond

This 6.7ct 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 LG551208029 or 551208029. Listed at 14 retailers as of October 29, 2026, with prices from $1,126 to $4,923, a $3,797 spread on the same certified stone. MOH London lists it at $4,923. 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

6.70
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG551208029
Dimensions12.13 × 12.07 × 7.43 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.13 mm12.07 mm6.70 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG551208029
Side View
Table 57.5%Crown 34.7°Girdle: MediumPavilion 40.9°Culet: NoneDepth 61.5%

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: $4,923 AUD|Low: $1,126 AUD|High: $14,074 AUD|Avg: $4,324 AUD
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
Retailer 16
Retailer 17
November 1, 2026
Retailer 13$1,126 AUD
Retailer 10$1,226 AUD
Retailer 17$1,307 AUD
Retailer 3$1,549 AUD
Retailer 14$1,559 AUD
Retailer 16$1,956 AUD
Retailer 2$1,980 AUD
Retailer 12$2,066 AUD
Retailer 15$2,078 AUD
Retailer 5$2,110 AUD
Retailer 11$3,106 AUD
Retailer 6$3,673 AUD
Retailer 4$4,444 AUD
MOH London$4,923 AUD
Retailer 8$8,378 AUD
Retailer 7$13,197 AUD
Retailer 9$14,074 AUD

5 data points across 17 retailers

14 retailers$1,126 AUD to $4,923 AUD

A
Cheapest Retailer
-
$1,126 AUD
$791 USD
A
Retailer 2
-
$1,226 AUD
$861 USD
View
A
Retailer 3
-
$1,307 AUD
$918 USD
View
A
Retailer 4
-
$1,549 AUD
HK$8,500 HKD
View
A
Retailer 5
-
$1,559 AUD
$1,095 USD
View
B+
Retailer 6
-
$1,956 AUD
$1,374 USD
View
A
Retailer 7
-
$1,980 AUD
£1,095 GBP
View
B+
Retailer 8
-
$2,066 AUD
£1,143 GBP
View
B+
Retailer 9
-
$2,078 AUD
€1,390 EUR
View
B+
Retailer 10
-
$2,110 AUD
$1,482 USD
View
B+
Retailer 11
-
$3,106 AUD
$2,182 USD
View
B
Retailer 12
-
$3,673 AUD
$2,580 USD
View
B
Retailer 13
-
$4,444 AUD
$3,122 USD
View
Most Expensive
B
MOH London
LG551208029 · Oct 29
$4,923 AUD
£2,723 GBP
View
13 more retailers have this diamond
Prices start from $1,126 AUDSave up to $3,797 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
6.70ct Round
$1,126 AUD