Radiant|Lab Grown|IGI

2.31ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG816608957

Certificate IGI LG816608957

Diamond specifications and retailer prices

From $840 USD
Save $6,640 USD (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $7,480 USD at Brilliant Earth
View at Brilliant Earth

About this 2.31ct lab-grown radiant diamond

This 2.31ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816608957 or 816608957. Listed at 10 retailers, with prices from $840 to $7,480 at Brilliant Earth, a $6,640 spread on the same certified stone. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.31
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.6°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608957
Dimensions9.87 × 6.54 × 4.50 mm
L/W Ratio1.51
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
9.87 mm6.54 mm2.31 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608957
Side View
Table 59.0%Crown 30.6°Girdle: MediumPavilion 35.8°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $7,480 USD|Low: $840 USD|High: $7,480 USD|Avg: $2,495 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 1, 2026
Retailer 6$840 USD
Retailer 4$882 USD
Retailer 7$1,685 USD
Retailer 8$2,228 USD
Retailer 9$2,971 USD
Retailer 2$3,104 USD
Retailer 10$3,173 USD
Retailer 3$3,461 USD
Retailer 5$5,050 USD
Brilliant Earth$7,480 USD

11 data points across 10 retailers

10 retailers$840 USD to $7,480 USD

B+
Cheapest Retailer
-
$840 USD
B+
Retailer 2
-
$882 USD
View
B+
Retailer 3
-
$1,685 USD
View
B+
Retailer 4
-
$2,228 USD
View
Price last confirmed 17 days ago
B
Retailer 5
-
$2,971 USD
View
Price last confirmed 20 days ago
B
Retailer 6
-
$3,104 USD
£2,444 GBP
View
B
Retailer 7
-
$3,173 USD
View
Price last confirmed 22 days ago
B
Retailer 8
-
$3,461 USD
A$5,324 AUD
View
C
Retailer 9
-
$5,050 USD
View
Most Expensive
C
Brilliant Earth
21588458Y · Oct 1
$7,480 USD
View
9 more retailers have this diamond
Prices start from $840 USDSave up to $6,640 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.

B+
2.31ct Radiant
$840 USD