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Radiant|Lab Grown|IGI

2.31ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG818649506

Certificate IGI LG818649506

Diamond specifications and retailer prices

From $804 USD
Save $3,836 USD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $4,640 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 LG818649506 or 818649506. Listed at 19 retailers, with prices from $804 to $4,640 at Brilliant Earth, a $3,836 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 angle29.3°
Pavilion angle29.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818649506
Dimensions9.40 × 6.30 × 4.17 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.40 mm6.30 mm2.31 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818649506
Side View
Table 64.0%Crown 29.3°Girdle: MED-STKPavilion 29.1°Culet: NoneDepth 66.2%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $4,640 USD|Low: $599 USD|High: $5,030 USD|Avg: $2,199 USD|-7.8%
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
September 30, 2026
Retailer 11$599 USD
Retailer 8$804 USD
Retailer 13$1,135 USD
Retailer 19$1,192 USD
Retailer 14$1,333 USD
Retailer 10$1,536 USD
Retailer 2$1,805 USD
Retailer 18$1,981 USD
Retailer 17$2,107 USD
Retailer 12$2,205 USD
Retailer 7$2,591 USD
Retailer 9$2,803 USD
Retailer 5$2,848 USD
Retailer 6$2,873 USD
Retailer 4$3,125 USD
Retailer 15$3,312 USD
Retailer 3$3,315 USD
Retailer 16$3,425 USD
Brilliant Earth$4,640 USD

39 data points across 19 retailers

19 retailers$804 USD to $4,640 USD

B+
Cheapest Retailer
-
$804 USD
B+
Retailer 2
-
$1,135 USD
View
B+
Retailer 3
-
$1,192 USD
View
B+
Retailer 4
-
$1,332 USD
£1,049 GBP
View
B+
Retailer 5
-
$1,536 USD
€1,463 EUR
View
B+
Retailer 6
-
$1,805 USD
View
B+
Retailer 7
-
$1,981 USD
A$3,047 AUD
View
B+
Retailer 8
-
$2,107 USD
ZAR 34,031 ZAR
View
B+
Retailer 9
-
$2,205 USD
View
B
Retailer 10
-
$2,591 USD
£2,040 GBP
View
B
Retailer 11
-
$2,803 USD
SGD 3,788 SGD
View
B
Retailer 12
-
$2,848 USD
View
B
Retailer 13
-
$2,873 USD
View
B
Retailer 14
-
$3,099 USD
View
B
Retailer 15
-
$3,125 USD
View
B
Retailer 16
-
$3,312 USD
£2,608 GBP
View
B
Retailer 17
-
$3,315 USD
View
B
Retailer 18
-
$3,425 USD
A$5,269 AUD
View
Most Expensive
C
Brilliant Earth
20983649A · Oct 1
$4,640 USD
View
18 more retailers have this diamond
Prices start from $804 USDSave up to $3,836 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
$804 USD