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Round|Lab Grown|IGI

0.99ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG704591642

Shape and cutting style on the report: Round brilliant

Certificate IGI LG704591642

Diamond specifications and retailer prices

From $164 USD
As of October 29, 2026
Save $914 USD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,078 USD at Reve Diamonds · As of October 28, 2026
View at Reve Diamonds

About this 0.99ct lab-grown round diamond

This 0.99ct lab-grown round sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG704591642 or 704591642. Listed at 16 retailers as of October 28, 2026, with prices from $164 to $1,078, a $914 spread on the same certified stone. Reve Diamonds lists it at $1,078. 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

0.99
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG704591642
Dimensions6.31 × 6.41 × 3.96 mm
L/W Ratio1.02
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
6.31 mm6.41 mm0.99 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG704591642
Side View
Table 56.0%Crown 34.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

Caratlytics Score

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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: Oct 29
Current: $359 USD|Low: $129 USD|High: $1,078 USD|Avg: $470 USD|+7.5%
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
October 29, 2026
Retailer 10$164 USD
Retailer 2$183 USD
Retailer 11$190 USD
Retailer 4$203 USD
Retailer 13$296 USD
Retailer 1$359 USD
Retailer 3$366 USD
Retailer 14$380 USD
Retailer 9$395 USD
Retailer 15$444 USD
Retailer 7$510 USD
Retailer 5$526 USD
Retailer 12$558 USD
Retailer 6$708 USD
Retailer 8$955 USD
Reve Diamonds$1,078 USD

43 data points across 16 retailers

16 retailers$164 USD to $1,078 USD

A
Cheapest Retailer
-
$164 USD
A
Retailer 2
-
$183 USD
View
Final sale: no returns
A
Retailer 3
-
$190 USD
View
A
Retailer 4
-
$203 USD
View
A
Retailer 5
-
$296 USD
View
A
Retailer 6
-
$359 USD
£283 GBP
View
B+
Retailer 7
-
$366 USD
View
A
Retailer 8
-
$380 USD
View
Price last confirmed 11 days ago
B+
Retailer 9
-
$395 USD
€376 EUR
View
B+
Retailer 10
-
$444 USD
View
B+
Retailer 11
-
$510 USD
View
B+
Retailer 12
-
$526 USD
View
B+
Retailer 13
-
$558 USD
A$858 AUD
View
B
Retailer 14
-
$708 USD
View
B
Retailer 15
-
$955 USD
£752 GBP
View
Most Expensive
B
Reve Diamonds
921A5D5F6 · Oct 28
$1,078 USD
View
15 more retailers have this diamond
Prices start from $164 USDSave up to $914 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
0.99ct Round
$164 USD