CaratHunter
Plans
Radiant|Lab Grown|IGI

18.07ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG830673978

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG830673978

Diamond specifications and retailer prices

From €6,919 EUR
$7,730 USD
As of October 31, 2026
Save €19,352 EUR (74%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €26,271 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 18.07ct lab-grown radiant diamond

This 18.07ct lab-grown radiant 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 LG830673978 or 830673978. Listed at 10 retailers as of October 31, 2026, with prices from €6,919 to €26,271, a €19,352 spread on the same certified stone. Brilliant Earth lists it at €26,271. 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

18.07
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49.9°
Pavilion angle32.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830673978
Dimensions17.72 × 12.54 × 8.47 mm
L/W Ratio1.41
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.72 mm12.54 mm18.07 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830673978
Side View
Table 65.0%Crown 49.9°Girdle: Slightly ThickPavilion 32.7°Culet: NoneDepth 67.5%

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 31
Current: €26,271 EUR|Low: €6,919 EUR|High: €27,408 EUR|Avg: €14,085 EUR|-4.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 8€6,919 EUR
Retailer 7€7,502 EUR
Retailer 3€8,659 EUR
Retailer 6€10,271 EUR
Retailer 5€10,753 EUR
Retailer 4€12,698 EUR
Retailer 2€13,276 EUR
Retailer 9€17,691 EUR
Retailer 10€23,849 EUR
Brilliant Earth€26,271 EUR

42 data points across 10 retailers

10 retailers€6,919 EUR to €26,271 EUR

B+
Cheapest Retailer
-
€6,919 EUR
$7,730 USD
B+
Retailer 2
-
€7,502 EUR
$8,381 USD
View
B+
Retailer 3
-
€8,659 EUR
£7,617 GBP
View
B
Retailer 4
-
€10,271 EUR
$11,475 USD
View
B+
Retailer 5
-
€10,753 EUR
ZAR 194,084 ZAR
View
B
Retailer 6
-
€12,698 EUR
View
B
Retailer 7
-
€13,276 EUR
A$22,818 AUD
View
B
Retailer 8
-
€17,691 EUR
$19,765 USD
View
B
Retailer 9
-
€23,849 EUR
$26,644 USD
View
Most Expensive
B
Brilliant Earth
21633058A · Oct 31
€26,271 EUR
$29,350 USD
View
9 more retailers have this diamond
Prices start from €6,919 EURSave up to €19,352 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+
18.07ct Radiant
€6,919 EUR