CaratHunter
Plans
Oval|Lab Grown|IGI

6.65ct G SI1 Oval Lab Grown Diamond

GD • G/SI1 • IGI LG598320885

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG598320885

Diamond specifications and retailer prices

From €1,437 EUR
$1,605 USD
As of October 29, 2026
Save €4,153 EUR (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €5,589 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 6.65ct lab-grown oval diamond

This 6.65ct lab-grown oval sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG598320885 or 598320885. Listed at 14 retailers as of October 29, 2026, with prices from €1,437 to €5,589, a €4,153 spread on the same certified stone. Taylor and Hart lists it at €5,589. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

6.65
Carat
G
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598320885
Dimensions15.72 × 10.45 × 6.37 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
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
15.72 mm10.45 mm6.65 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598320885
Side View
Table 58.0%Crown 35.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €2,083 EUR|Low: €1,437 EUR|High: €8,226 EUR|Avg: €3,227 EUR|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
November 1, 2026
Retailer 12€1,437 EUR
Retailer 4€1,593 EUR
Retailer 1€2,083 EUR
Retailer 3€2,209 EUR
Retailer 9€2,282 EUR
Retailer 10€2,349 EUR
Retailer 2€2,700 EUR
Retailer 13€2,912 EUR
Retailer 5€3,118 EUR
Retailer 8€3,504 EUR
Retailer 6€4,073 EUR
Retailer 7€4,256 EUR
Retailer 11€4,686 EUR
Taylor and Hart€5,589 EUR

32 data points across 14 retailers

14 retailers€1,437 EUR to €5,589 EUR

Retailer 1
-
€1,395 EUR
$1,559 USD
Price last confirmed 36 days ago
B+
Retailer 2
-
€1,437 EUR
$1,605 USD
View
Final sale: no returns
Retailer 3
-
€1,468 EUR
$1,640 USD
View
Price last confirmed 36 days ago
B
Retailer 4
-
€2,083 EUR
£1,832 GBP
View
B
Retailer 5
-
€2,282 EUR
$2,550 USD
View
B
Retailer 6
-
€2,349 EUR
$2,624 USD
View
B
Retailer 7
-
€2,700 EUR
$3,017 USD
View
Retailer 8
-
€2,789 EUR
$3,116 USD
View
Price last confirmed 35 days ago
B
Retailer 9
-
€2,912 EUR
$3,253 USD
View
B
Retailer 10
-
€3,504 EUR
$3,915 USD
View
B
Retailer 11
-
€4,073 EUR
$4,550 USD
View
Retailer 12
-
€4,256 EUR
£3,744 GBP
View
Price last confirmed 7 days ago
C
Retailer 13
-
€4,686 EUR
SGD 7,074 SGD
View
Most Expensive
C
Taylor and Hart
CLP5P7Y · Oct 31
€5,589 EUR
$6,244 USD
View
13 more retailers have this diamond
Prices start from €1,437 EURSave up to €4,153 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.

B+
6.65ct Oval
€1,437 EUR