Radiant|Lab Grown|IGI

6.78ct E VVS1 Radiant Lab Grown Diamond

ID • E/VVS1 • IGI LG839651449

Certificate IGI LG839651449

Diamond specifications and retailer prices

From $4,160 USD
Save $10,085 USD (71%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $14,245 USD at With Clarity
View at With Clarity

About this 6.78ct lab-grown radiant diamond

This 6.78ct lab-grown radiant sits in the over five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG839651449 or 839651449. Listed at 5 retailers, with prices from $4,160 to $14,245 at With Clarity, a $10,085 spread on the same certified stone. 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

6.78
Carat
E
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.8°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839651449
Dimensions14.18 × 8.87 × 6.00 mm
L/W Ratio1.60
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.18 mm8.87 mm6.78 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839651449
Side View
Table 66.0%Crown 44.8°Girdle: MED-STKPavilion 32.3°Culet: NoneDepth 67.6%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $10,236 USD|Low: $4,160 USD|High: $14,392 USD|Avg: $9,449 USD|-3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
With Clarity
October 1, 2026
Retailer 3$4,160 USD
Retailer 1$10,236 USD
Retailer 2$10,460 USD
Retailer 4$11,120 USD
With Clarity$14,392 USD

5 data points across 5 retailers

5 retailers$4,160 USD to $14,245 USD

B+
Cheapest Retailer
-
$4,160 USD
B
Retailer 2
-
$10,236 USD
SGD 13,833 SGD
View
B
Retailer 3
-
$10,460 USD
A$16,093 AUD
View
B
Retailer 4
-
$11,120 USD
View
Most Expensive
C
With Clarity
839651449 · Sep 30
$14,245 USD
View
4 more retailers have this diamond
Prices start from $4,160 USDSave up to $10,085 USD

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.

B+
6.78ct Radiant
$4,160 USD