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Radiant|Lab Grown|IGI

1.65ct D IF Radiant Lab Grown Diamond

VG • D/IF • IGI LG707550338

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

Certificate IGI LG707550338

Diamond specifications and retailer prices

From $648 NZD
$365 USD
As of October 30, 2026
Save $5,616 NZD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $6,263 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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), with a very-good cut grade and certified by IGI LG707550338 or 707550338. Listed at 25 retailers as of October 30, 2026, with prices from $648 to $6,263, a $5,616 spread on the same certified stone. Brilliant Earth lists it at $6,263. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG707550338
Dimensions8.18 × 5.91 × 4.03 mm
L/W Ratio1.38
Culet sizePointed
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
8.18 mm5.91 mm1.65 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG707550338
Side View
Table 65.0%Crown 43.2°Girdle: MED-STKPavilion 35.9°Culet: NoneDepth 68.2%

Caratlytics Score

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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: $6,263 NZD|Low: $616 NZD|High: $7,008 NZD|Avg: $2,167 NZD|-10.6%
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
Retailer 20
Retailer 21
Retailer 22
November 1, 2026
Retailer 6$648 NZD
Retailer 18$726 NZD
Retailer 3$751 NZD
Retailer 9$804 NZD
Retailer 14$804 NZD
Retailer 22$1,073 NZD
Retailer 8$1,263 NZD
Retailer 10$1,285 NZD
Retailer 16$1,345 NZD
Retailer 21$1,380 NZD
Retailer 2$1,449 NZD
Retailer 19$1,864 NZD
Retailer 11$2,010 NZD
Retailer 5$2,136 NZD
Retailer 7$2,582 NZD
Retailer 15$2,653 NZD
Retailer 13$3,032 NZD
Retailer 12$3,052 NZD
Retailer 20$3,155 NZD
Retailer 17$3,159 NZD
Retailer 4$5,181 NZD
Brilliant Earth$6,263 NZD

35 data points across 22 retailers

25 retailers$648 NZD to $6,263 NZD

A
Cheapest Retailer
-
$648 NZD
$365 USD
A
Retailer 2
-
$726 NZD
$409 USD
View
Final sale: no returns
A
Retailer 3
-
$751 NZD
$423 USD
View
Retailer 4
-
$804 NZD
$453 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$804 NZD
$453 USD
View
A
Retailer 6
-
$1,073 NZD
$605 USD
View
A
Retailer 7
-
$1,263 NZD
$712 USD
View
A
Retailer 8
-
$1,285 NZD
$724 USD
View
A
Retailer 9
-
$1,345 NZD
€722 EUR
View
A
Retailer 10
-
$1,380 NZD
ZAR 12,565 ZAR
View
A
Retailer 11
-
$1,449 NZD
£643 GBP
View
A
Retailer 12
-
$1,864 NZD
A$1,616 AUD
View
B+
Retailer 13
-
$2,010 NZD
$1,133 USD
View
B+
Retailer 14
-
$2,136 NZD
$1,204 USD
View
B+
Retailer 15
-
$2,582 NZD
$1,455 USD
View
B+
Retailer 16
-
$2,653 NZD
$1,495 USD
View
B+
Retailer 17
-
$2,700 NZD
$1,522 USD
View
B+
Retailer 18
-
$2,933 NZD
$1,653 USD
View
B
Retailer 19
-
$3,032 NZD
$1,709 USD
View
B
Retailer 20
-
$3,052 NZD
$1,720 USD
View
B+
Retailer 21
-
$3,155 NZD
£1,400 GBP
View
B+
Retailer 22
-
$3,159 NZD
A$2,739 AUD
View
Retailer 23
-
$4,992 NZD
$2,813 USD
View
Price last confirmed 62 days ago
B
Retailer 24
-
$5,181 NZD
$2,920 USD
View
Most Expensive
B
Brilliant Earth
15466022A · Oct 31
$6,263 NZD
$3,530 USD
View
24 more retailers have this diamond
Prices start from $648 NZDSave up to $5,616 NZD

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
$648 NZD