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Radiant|Lab Grown|IGI

1.65ct D IF Radiant Lab Grown Diamond

D/IF

Diamond specifications and retailer prices

From $612 SGD
£377 GBP
As of November 1, 2026
Save $2,872 SGD (82%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $3,484 SGD at Helzberg Diamonds · As of October 31, 2026
View at Helzberg Diamonds

About this 1.65ct lab-grown radiant diamond

This 1.65ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless) and certified by IGI. Listed at 2 retailers as of October 31, 2026, with prices from $612 to $3,484, a $2,872 spread on the same certified stone. Helzberg Diamonds lists it at $3,484. 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

1.65
Carat
D
Colour
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions8.18 × 5.91 × 4.03 mm
L/W Ratio1.38
Top View
8.18 mm5.91 mm1.65 ctD / IF
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 68.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $3,484 SGD|Low: $328 SGD|High: $3,484 SGD|Avg: $1,044 SGD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 8$328 SGD
Retailer 4$463 SGD
Retailer 5$537 SGD
Retailer 7$566 SGD
Retailer 6$573 SGD
Retailer 2$612 SGD
Retailer 3$1,843 SGD
Helzberg Diamonds$3,484 SGD

37 data points across 8 retailers

2 retailers$612 SGD to $3,484 SGD

A
Cheapest Retailer
-
$612 SGD
£377 GBP
Most Expensive
C
Helzberg Diamonds
ZXZNGNLLGJJO · Oct 31
$3,484 SGD
$2,725 USD
View
1 more retailer has this diamond
Prices start from $612 SGDSave up to $2,872 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
1.65ct Radiant
$612 SGD