CaratHunter
Plans
Radiant|Lab Grown|IGI

3.18ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG828688643

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

Certificate IGI LG828688643

Diamond specifications and retailer prices

From $1,776 SGD
$1,389 USD
As of October 29, 2026
Save $13,910 SGD (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $15,686 SGD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.18ct lab-grown radiant diamond

This 3.18ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG828688643 or 828688643. Listed at 18 retailers as of October 29, 2026, with prices from $1,776 to $15,686, a $13,910 spread on the same certified stone. Brilliant Earth lists it at $15,686. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

3.18
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828688643
Dimensions10.11 × 7.21 × 5.01 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.11 mm7.21 mm3.18 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828688643
Side View
Table 70.0%Crown 43.2°Girdle: Slightly ThickPavilion 38.4°Culet: NoneDepth 69.5%

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 29
Current: $15,686 SGD|Low: $1,776 SGD|High: $15,686 SGD|Avg: $4,571 SGD
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
October 31, 2026
Retailer 16$1,776 SGD
Retailer 3$2,058 SGD
Retailer 12$2,182 SGD
Retailer 11$2,245 SGD
Retailer 14$2,590 SGD
Retailer 6$2,646 SGD
Retailer 8$3,322 SGD
Retailer 10$3,502 SGD
Retailer 2$4,056 SGD
Retailer 17$4,270 SGD
Retailer 9$4,539 SGD
Retailer 7$5,368 SGD
Retailer 4$5,939 SGD
Retailer 15$6,410 SGD
Retailer 5$6,671 SGD
Retailer 13$6,862 SGD
Brilliant Earth$15,686 SGD

22 data points across 17 retailers

18 retailers$1,776 SGD to $15,686 SGD

A
Cheapest Retailer
-
$1,776 SGD
$1,389 USD
Final sale: no returns
A
Retailer 2
-
$2,058 SGD
$1,610 USD
View
A
Retailer 3
-
$2,182 SGD
£1,344 GBP
View
A
Retailer 4
-
$2,245 SGD
$1,756 USD
View
A
Retailer 5
-
$2,590 SGD
£1,595 GBP
View
A
Retailer 6
-
$2,646 SGD
$2,070 USD
View
Retailer 7
-
$3,322 SGD
€2,475 EUR
View
Price last confirmed 7 days ago
A
Retailer 8
-
$3,502 SGD
$2,739 USD
View
A
Retailer 9
-
$4,056 SGD
$3,173 USD
View
A
Retailer 10
-
$4,270 SGD
ZAR 53,954 ZAR
View
Retailer 11
-
$4,539 SGD
£2,796 GBP
View
Price last confirmed 9 days ago
B+
Retailer 12
-
$5,368 SGD
$4,199 USD
View
B+
Retailer 13
-
$5,939 SGD
£3,658 GBP
View
B+
Retailer 14
-
$6,410 SGD
$5,014 USD
View
B+
Retailer 15
-
$6,671 SGD
$5,218 USD
View
B
Retailer 16
-
$6,862 SGD
View
Retailer 17
-
$9,058 SGD
A$10,901 AUD
View
Price last confirmed 22 days ago
Most Expensive
B
Brilliant Earth
21324580A · Oct 29
$15,686 SGD
$12,270 USD
View
17 more retailers have this diamond
Prices start from $1,776 SGDSave up to $13,910 SGD

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
3.18ct Radiant
$1,776 SGD