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Round|Lab Grown|IGI

10.78ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG817695525

Shape and cutting style on the report: Round brilliant

Certificate IGI LG817695525

Diamond specifications and retailer prices

From €2,128 EUR
£1,872 GBP
As of October 30, 2026
Save €16,481 EUR (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €18,609 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 10.78ct lab-grown round diamond

This 10.78ct lab-grown round 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 LG817695525 or 817695525. Listed at 12 retailers as of October 29, 2026, with prices from €2,128 to €18,609, a €16,481 spread on the same certified stone. Brilliant Earth lists it at €18,609. 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

10.78
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817695525
Dimensions14.33 × 14.23 × 8.55 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.33 mm14.23 mm10.78 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817695525
Side View
Table 60.0%Crown 33.6°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 59.8%

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 30
Current: €18,609 EUR|Low: €2,128 EUR|High: €18,627 EUR|Avg: €5,750 EUR|+0.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 7€2,128 EUR
Retailer 5€2,569 EUR
Retailer 3€3,217 EUR
Retailer 4€3,300 EUR
Retailer 6€3,454 EUR
Retailer 2€3,589 EUR
Retailer 11€4,694 EUR
Retailer 8€5,167 EUR
Retailer 9€5,225 EUR
Retailer 10€5,901 EUR
Retailer 12€12,281 EUR
Brilliant Earth€18,609 EUR

38 data points across 12 retailers

12 retailers€2,128 EUR to €18,609 EUR

A
Cheapest Retailer
-
€2,128 EUR
£1,872 GBP
A
Retailer 2
-
€2,569 EUR
$2,870 USD
View
A
Retailer 3
-
€3,217 EUR
$3,594 USD
View
A
Retailer 4
-
€3,300 EUR
$3,687 USD
View
A
Retailer 5
-
€3,454 EUR
$3,859 USD
View
A
Retailer 6
-
€3,589 EUR
View
Retailer 7
-
€4,694 EUR
A$8,068 AUD
View
Price last confirmed 9 days ago
B+
Retailer 8
-
€5,167 EUR
$5,773 USD
View
B+
Retailer 9
-
€5,225 EUR
$5,837 USD
View
B+
Retailer 10
-
€5,901 EUR
$6,593 USD
View
B
Retailer 11
-
€12,281 EUR
$13,720 USD
View
Most Expensive
B
Brilliant Earth
21034507A · Oct 29
€18,609 EUR
$20,790 USD
View
11 more retailers have this diamond
Prices start from €2,128 EURSave up to €16,481 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
10.78ct Round
€2,128 EUR