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Round|Lab Grown|IGI

1.03ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG800630464

Shape and cutting style on the report: Round brilliant

Certificate IGI LG800630464

Diamond specifications and retailer prices

From $135 USD
As of November 1, 2026
Save $1,266 USD (90%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,401 USD at MOH London · As of November 2, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG800630464 or 800630464. Listed at 15 retailers as of November 1, 2026, with prices from $135 to $1,401, a $1,266 spread on the same certified stone. MOH London lists it at $1,401. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800630464
Dimensions6.48 × 6.53 × 3.93 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.48 mm6.53 mm1.03 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800630464
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,401 USD|Low: $135 USD|High: $1,408 USD|Avg: $354 USD|+65.1%
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
November 2, 2026
Retailer 7$135 USD
Retailer 4$152 USD
Retailer 14$157 USD
Retailer 3$168 USD
Retailer 11$168 USD
Retailer 12$282 USD
Retailer 9$283 USD
Retailer 2$297 USD
Retailer 6$315 USD
Retailer 8$331 USD
Retailer 10$400 USD
Retailer 15$415 USD
Retailer 13$539 USD
Retailer 5$570 USD
MOH London$1,401 USD

31 data points across 15 retailers

15 retailers$135 USD to $1,401 USD

A
Cheapest Retailer
-
$135 USD
A
Retailer 2
-
$152 USD
View
Final sale: no returns
A
Retailer 3
-
$157 USD
View
Retailer 4
-
$168 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$168 USD
View
A
Retailer 6
-
$282 USD
View
A
Retailer 7
-
$283 USD
View
A
Retailer 8
-
$297 USD
View
A
Retailer 9
-
$315 USD
View
A
Retailer 10
-
$331 USD
View
B+
Retailer 11
-
$400 USD
View
B+
Retailer 12
-
$415 USD
View
B+
Retailer 13
-
$539 USD
View
B
Retailer 14
-
$570 USD
View
Most Expensive
C
MOH London
LG800630464 · Nov 2
$1,401 USD
£1,103 GBP
View
14 more retailers have this diamond
Prices start from $135 USDSave up to $1,266 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
1.03ct Round
$135 USD