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Radiant|Lab Grown|IGI

3.18ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG719530985

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

Certificate IGI LG719530985

Diamond specifications and retailer prices

From $1,570 SGD
$1,228 USD
As of October 30, 2026
Save $5,034 SGD (76%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $15,673 SGD at Brilliant Earth · As of October 18, 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 top-tier cut grade and certified by IGI LG719530985 or 719530985. Listed at 23 retailers as of October 30, 2026, with a 321% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.18
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG719530985
Dimensions10.92 × 7.29 × 4.61 mm
L/W Ratio1.50
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.92 mm7.29 mm3.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG719530985
Side View
Table 65.0%Crown 40.2°Girdle: MED-STKPavilion 32.4°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: $15,673 SGD|Low: $1,570 SGD|High: $15,673 SGD|Avg: $4,446 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
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 30, 2026
Retailer 12$1,570 SGD
Retailer 11$1,708 SGD
Retailer 6$1,820 SGD
Retailer 17$2,039 SGD
Retailer 9$2,143 SGD
Retailer 21$2,281 SGD
Retailer 16$2,605 SGD
Retailer 2$2,637 SGD
Retailer 19$2,894 SGD
Retailer 3$3,413 SGD
Retailer 10$3,489 SGD
Retailer 4$4,055 SGD
Retailer 22$4,119 SGD
Retailer 13$4,228 SGD
Retailer 8$4,403 SGD
Retailer 20$5,045 SGD
Retailer 18$5,858 SGD
Retailer 7$6,385 SGD
Retailer 5$6,604 SGD
Retailer 15$7,530 SGD
Retailer 14$9,058 SGD
Brilliant Earth$15,673 SGD

31 data points across 22 retailers

23 retailers$1,570 SGD to $6,604 SGD

A+
Cheapest Retailer
-
$1,570 SGD
$1,228 USD
A
Retailer 2
-
$1,708 SGD
$1,336 USD
View
A
Retailer 3
-
$1,820 SGD
$1,424 USD
View
A
Retailer 4
-
$2,039 SGD
$1,595 USD
View
A
Retailer 5
-
$2,143 SGD
$1,676 USD
View
Retailer 6
-
$2,177 SGD
$1,703 USD
View
Price last confirmed 18 days ago
A
Retailer 7
-
$2,281 SGD
$1,784 USD
View
Final sale: no returns
A
Retailer 8
-
$2,605 SGD
$2,038 USD
View
A
Retailer 9
-
$2,637 SGD
£1,624 GBP
View
Retailer 10
-
$2,894 SGD
€2,156 EUR
View
Price last confirmed 7 days ago
A
Retailer 11
-
$3,413 SGD
$2,670 USD
View
A
Retailer 12
-
$3,489 SGD
$2,729 USD
View
A
Retailer 13
-
$4,055 SGD
$3,172 USD
View
Retailer 14
-
$4,119 SGD
A$4,957 AUD
View
Price last confirmed 8 days ago
A
Retailer 15
-
$4,228 SGD
ZAR 53,432 ZAR
View
A
Retailer 16
-
$4,403 SGD
£2,712 GBP
View
B+
Retailer 17
-
$5,045 SGD
$3,946 USD
View
B+
Retailer 18
-
$5,858 SGD
£3,608 GBP
View
B+
Retailer 19
-
$6,385 SGD
$4,994 USD
View
B+
Retailer 20
-
$6,604 SGD
$5,166 USD
View
Retailer 21
-
$7,530 SGD
$5,890 USD
View
Price last confirmed 25 days ago
Retailer 22
-
$9,058 SGD
A$10,901 AUD
View
Price last confirmed 22 days ago
Most Expensive
Brilliant Earth
20114891A · Oct 18
$15,673 SGD
$12,260 USD
View
Price last confirmed 12 days ago
22 more retailers have this diamond
Prices start from $1,570 SGDSave up to $5,034 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
$1,570 SGD