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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 €708 EUR
$791 USD
As of November 1, 2026
Save €3,083 EUR (81%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €3,791 EUR at Rare Carat · As of November 1, 2026
View at Rare Carat

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 15 retailers as of November 1, 2026, with prices from €708 to €3,791, a €3,083 spread on the same certified stone. Rare Carat lists it at €3,791. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €5,267 EUR|Low: €708 EUR|High: €8,849 EUR|Avg: €2,719 EUR
Rare Carat
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 14€708 EUR
Retailer 12€771 EUR
Retailer 3€822 EUR
Retailer 4€974 EUR
Retailer 15€980 EUR
Retailer 17€1,230 EUR
Retailer 11€1,245 EUR
Retailer 10€1,295 EUR
Retailer 16€1,306 EUR
Retailer 6€1,327 EUR
Retailer 13€1,953 EUR
Retailer 7€2,309 EUR
Retailer 5€2,794 EUR
Retailer 2€3,078 EUR
Rare Carat€5,267 EUR
Retailer 8€8,297 EUR
Retailer 9€8,849 EUR

5 data points across 17 retailers

15 retailers€708 EUR to €3,791 EUR

A
Cheapest Retailer
-
€708 EUR
$791 USD
A
Retailer 2
-
€771 EUR
$861 USD
View
A
Retailer 3
-
€822 EUR
$918 USD
View
A
Retailer 4
-
€974 EUR
HK$8,500 HKD
View
A
Retailer 5
-
€980 EUR
$1,095 USD
View
B+
Retailer 6
-
€1,230 EUR
$1,374 USD
View
A
Retailer 7
-
€1,245 EUR
£1,095 GBP
View
B+
Retailer 8
-
€1,295 EUR
£1,139 GBP
View
B+
Retailer 9
-
€1,306 EUR
View
B+
Retailer 10
-
€1,327 EUR
$1,482 USD
View
B+
Retailer 11
-
€1,953 EUR
$2,182 USD
View
B
Retailer 12
-
€2,309 EUR
$2,580 USD
View
B
Retailer 13
-
€2,794 EUR
$3,122 USD
View
B
Retailer 14
-
€3,078 EUR
£2,708 GBP
View
Most Expensive
B
Rare Carat
KI0292080KF551 · Nov 1
€3,791 EUR
$4,235 USD
View
14 more retailers have this diamond
Prices start from €708 EURSave up to €3,083 EUR

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
€708 EUR