CaratHunter
Plans
Round|Lab Grown|IGI

0.91ct E SI1 Round Lab Grown Diamond

VG • E/SI1 • IGI LG457056543

Shape and cutting style on the report: Round brilliant

Certificate IGI LG457056543

Diamond specifications and retailer prices

From $138 USD
As of October 29, 2026
Save $663 USD (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $801 USD at MOH London · As of October 26, 2026
View at MOH London

About this 0.91ct lab-grown round diamond

This 0.91ct lab-grown round sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG457056543 or 457056543. Listed at 12 retailers as of October 26, 2026, with prices from $138 to $801, a $663 spread on the same certified stone. MOH London lists it at $801. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.91
Carat
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG457056543
Dimensions6.16 × 6.10 × 3.86 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.16 mm6.10 mm0.91 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG457056543
Side View
Table 59.0%Crown 36.8°Girdle: ThickPavilion 40.9°Culet: NoneDepth 62.9%

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 29
Current: $801 USD|Low: $132 USD|High: $893 USD|Avg: $450 USD|-0.8%
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
October 29, 2026
Retailer 12$138 USD
Retailer 16$155 USD
Retailer 17$160 USD
Retailer 3$294 USD
Retailer 10$296 USD
Retailer 15$319 USD
Retailer 2$321 USD
Retailer 6$393 USD
Retailer 8$426 USD
Retailer 5$439 USD
Retailer 7$522 USD
Retailer 14$550 USD
Retailer 11$581 USD
Retailer 13$670 USD
Retailer 4$717 USD
MOH London$801 USD
Retailer 9$893 USD

30 data points across 17 retailers

12 retailers$138 USD to $801 USD

A
Cheapest Retailer
-
$138 USD
A
Retailer 2
-
$155 USD
View
Final sale: no returns
A
Retailer 3
-
$160 USD
View
B+
Retailer 4
-
$294 USD
HK$2,300 HKD
View
A
Retailer 5
-
$296 USD
€282 EUR
View
B+
Retailer 6
-
$319 USD
View
B+
Retailer 7
-
$321 USD
£253 GBP
View
B
Retailer 8
-
$550 USD
View
B
Retailer 9
-
$581 USD
View
B
Retailer 10
-
$670 USD
View
B
Retailer 11
-
$717 USD
SGD 969 SGD
View
Most Expensive
B
MOH London
LG457056543 · Oct 26
$801 USD
£631 GBP
View
11 more retailers have this diamond
Prices start from $138 USDSave up to $663 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
0.91ct Round
$138 USD