CaratHunter
Plans
Round|Lab Grown|IGI

1.01ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG818632203

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818632203

Diamond specifications and retailer prices

From $148 USD
As of November 5, 2026
Save $879 USD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,027 USD at Reve Diamonds · As of November 4, 2026
View at Reve Diamonds

About this 1.01ct lab-grown round diamond

This 1.01ct 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 LG818632203 or 818632203. Listed at 17 retailers as of November 4, 2026, with prices from $148 to $1,027, a $879 spread on the same certified stone. Reve Diamonds lists it at $1,027. 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
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818632203
Dimensions6.42 × 6.39 × 3.98 mm
L/W Ratio1.00
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
6.42 mm6.39 mm1.01 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818632203
Side View
Table 56.0%Crown 34.3°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.1%

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: Nov 5
Current: $359 USD|Low: $139 USD|High: $1,027 USD|Avg: $377 USD|+1.1%
Retailer 1
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
Reve Diamonds
November 5, 2026
Retailer 12$148 USD
Retailer 3$171 USD
Retailer 10$180 USD
Retailer 14$183 USD
Retailer 2$278 USD
Retailer 8$313 USD
Retailer 13$316 USD
Retailer 4$337 USD
Retailer 1$359 USD
Retailer 7$405 USD
Retailer 6$480 USD
Retailer 11$483 USD
Retailer 15$589 USD
Retailer 5$644 USD
Retailer 9$853 USD
Reve Diamonds$1,027 USD

40 data points across 16 retailers

17 retailers$148 USD to $1,027 USD

A
Cheapest Retailer
-
$148 USD
A
Retailer 2
-
$171 USD
View
Retailer 3
-
$179 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$180 USD
View
Final sale: no returns
A
Retailer 5
-
$183 USD
View
A
Retailer 6
-
$278 USD
View
A
Retailer 7
-
$313 USD
View
A
Retailer 8
-
$316 USD
View
B+
Retailer 9
-
$337 USD
View
B+
Retailer 10
-
$359 USD
View
Retailer 11
-
$405 USD
View
Price last confirmed 33 days ago
B+
Retailer 12
-
$480 USD
View
B+
Retailer 13
-
$483 USD
View
B
Retailer 14
-
$589 USD
View
B
Retailer 15
-
$644 USD
View
B
Retailer 16
-
$853 USD
View
Most Expensive
B
Reve Diamonds
264BE92C8 · Nov 4
$1,027 USD
View
16 more retailers have this diamond
Prices start from $148 USDSave up to $879 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
1.01ct Round
$148 USD