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5.91ct E VS1 Round Lab Grown Diamond

EX • E/VS1 • IGI LG828633520

Shape and cutting style on the report: Round brilliant

Certificate IGI LG828633520

Diamond specifications and retailer prices

From $1,873 SGD
$1,461 USD
As of October 28, 2026
Save $7,579 SGD (80%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $9,452 SGD at Frank Darling · As of October 29, 2026
View at Frank Darling

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 LG828633520 or 828633520. Listed at 4 retailers as of October 28, 2026, with prices from $1,873 to $9,452, a $7,579 spread on the same certified stone. Frank Darling lists it at $9,452. 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
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828633520
Dimensions11.41 × 11.48 × 7.19 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
11.41 mm11.48 mm5.91 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828633520
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.7%

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 28
Current: $9,452 SGD|Low: $1,873 SGD|High: $9,454 SGD|Avg: $3,769 SGD|-0.0%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 27, 2026
Retailer 3$1,873 SGD
Retailer 5$2,159 SGD
Retailer 2$3,917 SGD
Retailer 4$6,960 SGD
Frank Darling$9,452 SGD

18 data points across 5 retailers

4 retailers$1,873 SGD to $9,452 SGD

B+
Cheapest Retailer
-
$1,873 SGD
$1,461 USD
B+
Retailer 2
-
$3,917 SGD
$3,056 USD
View
Retailer 3
-
$6,960 SGD
$5,430 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Frank Darling
100194896716KD · Oct 29
$9,452 SGD
$7,374 USD
View
3 more retailers have this diamond
Prices start from $1,873 SGDSave up to $7,579 SGD

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+
5.91ct Round
$1,873 SGD