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Round|Lab Grown|IGI

1.03ct D SI2 Round Lab Grown Diamond

EX • D/SI2 • IGI LG472170725

Shape and cutting style on the report: Round brilliant

Certificate IGI LG472170725

Diamond specifications and retailer prices

From $610 USD
As of October 29, 2026
Save $732 USD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,034 USD at Friendly Diamonds · As of October 30, 2026
View at Friendly Diamonds

About this 1.03ct lab-grown round diamond

This 1.03ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG472170725 or 472170725. Listed at 11 retailers as of October 29, 2026, with a 120% 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

1.03
Carat
D
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG472170725
Dimensions6.61 × 6.56 × 3.87 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
6.61 mm6.56 mm1.03 ctD / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG472170725
Side View
Table 60.0%Crown 32.2°Girdle: MediumPavilion 40.5°Culet: NoneDepth 58.8%

Caratlytics Score

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

Price History

Last verified: Oct 29
Current: $2,034 USD|Low: $568 USD|High: $3,282 USD|Avg: $1,295 USD
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 5$610 USD
Retailer 4$712 USD
Retailer 8$797 USD
Retailer 6$826 USD
Retailer 2$1,320 USD
Retailer 7$1,342 USD
Friendly Diamonds$2,034 USD
Retailer 3$3,260 USD

41 data points across 8 retailers

11 retailers$610 USD to $1,342 USD

B
Cheapest Retailer
-
$610 USD
B
Retailer 2
-
$712 USD
View
B
Retailer 3
-
$775 USD
View
B
Retailer 4
-
$797 USD
View
Final sale: no returns
B
Retailer 5
-
$826 USD
View
Retailer 6
-
$826 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$1,320 USD
£1,039 GBP
View
B
Retailer 8
-
$1,342 USD
View
Most Expensive
Friendly Diamonds
1589862 · Oct 30
$2,034 USD
View
Price under review
8 more retailers have this diamond
Prices start from $610 USDSave up to $732 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
1.03ct Round
$610 USD