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Radiant|Lab Grown|IGI

1.68ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG825660118

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

Certificate IGI LG825660118

Diamond specifications and retailer prices

From $749 SGD
$586 USD
As of October 30, 2026
Save $4,409 SGD (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,158 SGD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.68ct lab-grown radiant diamond

This 1.68ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825660118 or 825660118. Listed at 21 retailers as of October 28, 2026, with prices from $749 to $5,158, a $4,409 spread on the same certified stone. Rare Carat lists it at $5,158. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.68
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.5°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825660118
Dimensions8.14 × 5.77 × 4.15 mm
L/W Ratio1.41
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
8.14 mm5.77 mm1.68 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825660118
Side View
Table 64.0%Crown 45.5°Girdle: MED-STKPavilion 37.1°Culet: NoneDepth 71.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $5,158 SGD|Low: $749 SGD|High: $6,865 SGD|Avg: $2,503 SGD|-1.1%
Rare Carat
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
Retailer 20
October 31, 2026
Retailer 11$749 SGD
Retailer 18$839 SGD
Retailer 7$869 SGD
Retailer 10$928 SGD
Retailer 17$1,093 SGD
Retailer 3$1,428 SGD
Retailer 2$1,452 SGD
Retailer 20$1,515 SGD
Retailer 16$1,596 SGD
Retailer 5$1,687 SGD
Retailer 4$2,094 SGD
Retailer 8$2,443 SGD
Retailer 6$2,708 SGD
Retailer 12$3,006 SGD
Retailer 13$3,045 SGD
Retailer 9$3,160 SGD
Retailer 15$4,054 SGD
Retailer 19$4,428 SGD
Retailer 14$5,011 SGD
Rare Carat$5,158 SGD

30 data points across 20 retailers

21 retailers$749 SGD to $5,158 SGD

A
Cheapest Retailer
-
$749 SGD
$586 USD
A
Retailer 2
-
$839 SGD
$656 USD
View
A
Retailer 3
-
$869 SGD
$680 USD
View
Final sale: no returns
A
Retailer 4
-
$928 SGD
$726 USD
View
Retailer 5
-
$991 SGD
$775 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$1,093 SGD
$855 USD
View
A
Retailer 7
-
$1,428 SGD
$1,117 USD
View
A
Retailer 8
-
$1,452 SGD
£894 GBP
View
Retailer 9
-
$1,515 SGD
€1,129 EUR
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$1,596 SGD
ZAR 20,171 ZAR
View
B+
Retailer 11
-
$1,687 SGD
$1,320 USD
View
B+
Retailer 12
-
$2,094 SGD
$1,638 USD
View
B+
Retailer 13
-
$2,443 SGD
$1,911 USD
View
B+
Retailer 14
-
$2,708 SGD
£1,668 GBP
View
B+
Retailer 15
-
$3,006 SGD
$2,352 USD
View
B
Retailer 16
-
$3,045 SGD
$2,382 USD
View
B+
Retailer 17
-
$3,160 SGD
View
B
Retailer 18
-
$4,054 SGD
£2,497 GBP
View
B
Retailer 19
-
$4,428 SGD
$3,464 USD
View
B
Retailer 20
-
$5,011 SGD
$3,920 USD
View
Most Expensive
B
Rare Carat
PD-239706 · Oct 28
$5,158 SGD
$4,035 USD
View
20 more retailers have this diamond
Prices start from $749 SGDSave up to $4,409 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
1.68ct Radiant
$749 SGD