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Round|Lab Grown|IGI

1.00ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG445036486

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445036486

Diamond specifications and retailer prices

From $580 USD
As of October 30, 2026
Save $3,581 USD (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,161 USD at MOH London · As of October 27, 2026
View at MOH London

About this 1ct lab-grown round diamond

This 1ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445036486 or 445036486. Listed at 12 retailers as of October 27, 2026, with prices from $580 to $4,161, a $3,581 spread on the same certified stone. MOH London lists it at $4,161. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.00
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.3°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445036486
Dimensions6.32 × 6.35 × 4.03 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.32 mm6.35 mm1.00 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445036486
Side View
Table 57.5%Crown 36.3°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 63.6%

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: $4,161 USD|Low: $580 USD|High: $4,211 USD|Avg: $1,931 USD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 2$580 USD
Retailer 4$1,115 USD
Retailer 7$1,249 USD
Retailer 5$1,293 USD
Retailer 8$1,465 USD
Retailer 9$1,830 USD
Retailer 6$2,057 USD
Retailer 3$2,217 USD
Retailer 10$2,623 USD
MOH London$4,161 USD

21 data points across 10 retailers

12 retailers$580 USD to $4,161 USD

A
Cheapest Retailer
-
$580 USD
B+
Retailer 2
-
$1,115 USD
View
B+
Retailer 3
-
$1,213 USD
View
B+
Retailer 4
-
$1,249 USD
View
Final sale: no returns
Retailer 5
-
$1,293 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$1,293 USD
View
B
Retailer 7
-
$1,465 USD
View
B
Retailer 8
-
$2,057 USD
View
B
Retailer 9
-
$2,217 USD
€2,111 EUR
View
B
Retailer 10
-
$2,424 USD
View
B
Retailer 11
-
$2,623 USD
View
Most Expensive
B
MOH London
LG445036486 · Oct 27
$4,161 USD
£3,276 GBP
View
11 more retailers have this diamond
Prices start from $580 USDSave up to $3,581 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
1.00ct Round
$580 USD