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Radiant|Lab Grown|IGI

0.99ct E VS1 Radiant Lab Grown Diamond

EX • E/VS1 • IGI LG612318154

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG612318154

Diamond specifications and retailer prices

From $179 USD
As of October 27, 2026
Save $979 USD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,158 USD at Flawless Fine Jewelry · As of October 29, 2026
View at Flawless Fine Jewelry

About this 0.99ct lab-grown radiant diamond

This 0.99ct lab-grown radiant sits in the just-under-one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG612318154 or 612318154. Listed at 16 retailers as of October 27, 2026, with prices from $179 to $1,158, a $979 spread on the same certified stone. Flawless Fine Jewelry lists it at $1,158. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.99
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle44.3°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG612318154
Dimensions6.47 × 5.07 × 3.41 mm
L/W Ratio1.28
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
6.47 mm5.07 mm0.99 ctE / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG612318154
Side View
Table 67.0%Crown 44.3°Girdle: MED-STKPavilion 33.5°Culet: NoneDepth 67.3%

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: Oct 27
Current: $287 USD|Low: $172 USD|High: $1,050 USD|Avg: $429 USD|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 11$179 USD
Retailer 2$200 USD
Retailer 3$222 USD
Retailer 12$222 USD
Retailer 1$287 USD
Retailer 10$393 USD
Retailer 5$397 USD
Retailer 6$401 USD
Retailer 4$461 USD
Retailer 9$754 USD
Retailer 7$768 USD
Retailer 8$1,043 USD

44 data points across 12 retailers

16 retailers$179 USD to $1,158 USD

A
Cheapest Retailer
-
$179 USD
A
Retailer 2
-
$200 USD
View
Final sale: no returns
A
Retailer 3
-
$208 USD
View
A
Retailer 4
-
$222 USD
View
A
Retailer 5
-
$222 USD
View
A
Retailer 6
-
$287 USD
£226 GBP
View
A
Retailer 7
-
$352 USD
View
B+
Retailer 8
-
$393 USD
View
A
Retailer 9
-
$397 USD
£313 GBP
View
A
Retailer 10
-
$401 USD
ZAR 6,480 ZAR
View
B+
Retailer 11
-
$461 USD
View
B
Retailer 12
-
$713 USD
View
B
Retailer 13
-
$754 USD
View
B
Retailer 14
-
$768 USD
View
B
Retailer 15
-
$1,043 USD
£821 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Flawless Fine Jewelry
31FC6CB3C · Oct 29
$1,158 USD
£912 GBP
View
15 more retailers have this diamond
Prices start from $179 USDSave up to $979 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 Radiant
$179 USD