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Round|Lab Grown|IGI

5.91ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG807651601

Shape and cutting style on the report: Round brilliant

Certificate IGI LG807651601

Diamond specifications and retailer prices

From $742 USD
As of October 29, 2026
Save $3,525 USD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,460 USD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 5.91ct lab-grown round diamond

This 5.91ct lab-grown round sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG807651601 or 807651601. Listed at 14 retailers as of October 28, 2026, with a 475% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

5.91
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG807651601
Dimensions11.61 × 11.66 × 7.00 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
11.61 mm11.66 mm5.91 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG807651601
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.2%

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 29
Current: $5,460 USD|Low: $740 USD|High: $5,525 USD|Avg: $2,509 USD|-0.8%
Rare Carat
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
October 29, 2026
Retailer 6$742 USD
Retailer 15$807 USD
Retailer 12$1,080 USD
Retailer 3$1,349 USD
Retailer 2$1,369 USD
Retailer 7$1,492 USD
Retailer 11$1,754 USD
Retailer 13$2,119 USD
Retailer 10$2,120 USD
Retailer 4$2,419 USD
Retailer 16$2,792 USD
Retailer 8$3,310 USD
Retailer 9$3,383 USD
Retailer 5$3,722 USD
Retailer 14$4,267 USD
Rare Carat$5,460 USD

30 data points across 16 retailers

14 retailers$742 USD to $4,267 USD

A
Cheapest Retailer
-
$742 USD
A
Retailer 2
-
$807 USD
View
Retailer 3
-
$1,080 USD
£851 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
$1,349 USD
View
A
Retailer 5
-
$1,369 USD
€1,304 EUR
View
Retailer 6
-
$1,754 USD
A$2,698 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$2,119 USD
View
B+
Retailer 8
-
$2,120 USD
View
B+
Retailer 9
-
$2,419 USD
View
B+
Retailer 10
-
$2,792 USD
View
B+
Retailer 11
-
$3,383 USD
£2,664 GBP
View
Retailer 12
-
$3,722 USD
SGD 5,030 SGD
View
Price last confirmed 16 days ago
B
Retailer 13
-
$4,267 USD
View
Most Expensive
Rare Carat
LGRD50-85109 · Oct 18
$5,460 USD
View
Price last confirmed 11 days ago
13 more retailers have this diamond
Prices start from $742 USDSave up to $3,525 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
5.91ct Round
$742 USD