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Round|Lab Grown|IGI

1.01ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG472171951

Shape and cutting style on the report: Round brilliant

Certificate IGI LG472171951

Diamond specifications and retailer prices

From $653 USD
As of October 29, 2026
Save $582 USD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,130 USD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.01ct lab-grown round diamond

This 1.01ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG472171951 or 472171951. Listed at 11 retailers as of October 29, 2026, with a 89% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
E
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472171951
Dimensions6.55 × 6.53 × 3.80 mm
L/W Ratio1.00
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
6.55 mm6.53 mm1.01 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG472171951
Side View
Table 62.0%Crown 32.3°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 58.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $2,130 USD|Low: $521 USD|High: $3,230 USD|Avg: $1,250 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 5$653 USD
Retailer 10$711 USD
Retailer 9$731 USD
Retailer 7$758 USD
Retailer 6$770 USD
Retailer 2$1,207 USD
Retailer 8$1,235 USD
Retailer 4$1,935 USD
NZ Jewellers$2,130 USD
Retailer 3$3,208 USD

43 data points across 10 retailers

11 retailers$653 USD to $1,235 USD

B
Cheapest Retailer
-
$653 USD
B
Retailer 2
-
$711 USD
View
B
Retailer 3
-
$731 USD
View
Final sale: no returns
Retailer 4
-
$758 USD
View
Price last confirmed 14 days ago
B
Retailer 5
-
$758 USD
View
B
Retailer 6
-
$770 USD
View
B
Retailer 7
-
$1,207 USD
£950 GBP
View
B
Retailer 8
-
$1,235 USD
View
Retailer 9
-
$1,935 USD
View
Price under review
Most Expensive
NZ Jewellers
4db08680-e9bd-42cc-9005-aa36d6d2bd49 · Oct 27
$2,130 USD
View
Price under review
9 more retailers have this diamond
Prices start from $653 USDSave up to $582 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.

B
1.01ct Round
$653 USD