Round|Lab Grown|IGI

1.00ct G VS1 Round Lab Grown Diamond

EX • G/VS1 • IGI LG818687089

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818687089

Diamond specifications and retailer prices

From €252 EUR
$282 USD
As of October 24, 2026
Save €320 EUR (56%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €776 EUR at MOH London · As of October 21, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818687089 or 818687089. Listed at 20 retailers as of October 24, 2026, with a 127% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.00
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818687089
Dimensions6.38 × 6.41 × 3.96 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.38 mm6.41 mm1.00 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818687089
Side View
Table 58.0%Crown 33.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.9%

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 24
Current: €776 EUR|Low: €128 EUR|High: €781 EUR|Avg: €364 EUR|-0.4%
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
Retailer 18
Retailer 19
October 26, 2026
Retailer 18€133 EUR
Retailer 19€155 EUR
Retailer 4€166 EUR
Retailer 6€166 EUR
Retailer 10€252 EUR
Retailer 13€271 EUR
Retailer 16€279 EUR
Retailer 14€285 EUR
Retailer 3€303 EUR
Retailer 12€312 EUR
Retailer 5€358 EUR
Retailer 8€383 EUR
Retailer 15€404 EUR
Retailer 7€531 EUR
Retailer 2€546 EUR
Retailer 17€561 EUR
Retailer 9€573 EUR
Retailer 11€581 EUR
MOH London€776 EUR

22 data points across 19 retailers

20 retailers€252 EUR to €573 EUR

Retailer 1
-
€133 EUR
$149 USD
Price last confirmed 9 days ago
A
Retailer 2
-
€155 EUR
$173 USD
View
Price last confirmed 7 days ago
Retailer 3
-
€166 EUR
$185 USD
View
Price last confirmed 15 days ago
Retailer 4
-
€166 EUR
$185 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
€252 EUR
$282 USD
View
A
Retailer 6
-
€271 EUR
£238 GBP
View
Retailer 7
-
€279 EUR
ZAR 5,039 ZAR
View
Price last confirmed 8 days ago
A
Retailer 8
-
€285 EUR
£251 GBP
View
Retailer 9
-
€303 EUR
$339 USD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
€312 EUR
View
Retailer 11
-
€349 EUR
$390 USD
View
Price last confirmed 10 days ago
Retailer 12
-
€358 EUR
$400 USD
View
Price last confirmed 27 days ago
B+
Retailer 13
-
€383 EUR
$428 USD
View
Retailer 14
-
€404 EUR
A$695 AUD
View
Price last confirmed 8 days ago
B
Retailer 15
-
€531 EUR
$593 USD
View
B
Retailer 16
-
€546 EUR
$610 USD
View
Retailer 17
-
€561 EUR
$627 USD
View
Price last confirmed 8 days ago
B
Retailer 18
-
€573 EUR
$640 USD
View
Retailer 19
-
€581 EUR
$649 USD
View
Price last confirmed 8 days ago
Most Expensive
MOH London
LG818687089 · Oct 21
€776 EUR
£683 GBP
View
Price last confirmed 10 days ago
19 more retailers have this diamond
Prices start from €252 EURSave up to €320 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
1.00ct Round
€252 EUR