Radiant|Lab Grown|GIA

1.45ct E IF Radiant Lab Grown Diamond

GD • E/IF • GIA 2507851204

Certificate GIA 2507851204

Diamond specifications and retailer prices

From $1,946 NZD
$1,097 USD
As of October 30, 2026
Save $4,545 NZD (70%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $8,847 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1.45ct lab-grown radiant diamond

This 1.45ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2507851204. Listed at 25 retailers as of October 30, 2026, with a 234% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.45
Carat
E
Colour
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2507851204
Dimensions7.59 × 5.71 × 3.82 mm
L/W Ratio1.33
Top View
7.59 mm5.71 mm1.45 ctE / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2507851204
Side View
Table 66.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 66.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $6,492 NZD|Low: $1,879 NZD|High: $8,911 NZD|Avg: $4,560 NZD|-0.8%
Retailer 1
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
Taylor and Hart
November 1, 2026
Retailer 6$1,946 NZD
Retailer 9$2,099 NZD
Retailer 5$2,117 NZD
Retailer 7$2,179 NZD
Retailer 16$2,257 NZD
Retailer 2$2,360 NZD
Retailer 4$2,564 NZD
Retailer 8$2,732 NZD
Retailer 12$3,823 NZD
Retailer 10$4,445 NZD
Retailer 17$4,580 NZD
Retailer 20$4,670 NZD
Retailer 14$4,783 NZD
Retailer 15$5,145 NZD
Retailer 19$5,145 NZD
Retailer 13$5,234 NZD
Retailer 11$6,030 NZD
Retailer 3$6,294 NZD
Retailer 1$6,492 NZD
Retailer 18$8,049 NZD
Taylor and Hart$8,847 NZD

42 data points across 21 retailers

25 retailers$1,946 NZD to $6,492 NZD

B+
Cheapest Retailer
-
$1,946 NZD
$1,097 USD
B+
Retailer 2
-
$2,099 NZD
$1,183 USD
View
B+
Retailer 3
-
$2,117 NZD
$1,193 USD
View
B+
Retailer 4
-
$2,179 NZD
$1,228 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,257 NZD
$1,272 USD
View
B
Retailer 6
-
$2,360 NZD
$1,330 USD
View
B
Retailer 7
-
$2,564 NZD
$1,445 USD
View
B
Retailer 8
-
$2,732 NZD
$1,540 USD
View
B
Retailer 9
-
$3,204 NZD
$1,806 USD
View
B
Retailer 10
-
$3,823 NZD
€2,052 EUR
View
Retailer 11
-
$4,445 NZD
$2,505 USD
View
Price last confirmed 10 days ago
B
Retailer 12
-
$4,580 NZD
ZAR 41,704 ZAR
View
B
Retailer 13
-
$4,670 NZD
$2,632 USD
View
B
Retailer 14
-
$4,775 NZD
$2,691 USD
View
B
Retailer 15
-
$4,783 NZD
A$4,147 AUD
View
B
Retailer 16
-
$5,145 NZD
$2,900 USD
View
B
Retailer 17
-
$5,145 NZD
$2,900 USD
View
B
Retailer 18
-
$5,234 NZD
$2,950 USD
View
B
Retailer 19
-
$6,030 NZD
£2,676 GBP
View
B
Retailer 20
-
$6,294 NZD
$3,547 USD
View
B
Retailer 21
-
$6,362 NZD
CA$4,980 CAD
View
B
Retailer 22
-
$6,492 NZD
A$5,629 AUD
View
Retailer 23
-
$8,049 NZD
£3,572 GBP
View
Price under review
Most Expensive
Taylor and Hart
C5497SC · Oct 31
$8,847 NZD
$4,986 USD
View
Price under review
23 more retailers have this diamond
Prices start from $1,946 NZDSave up to $4,545 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.

B+
1.45ct Radiant
$1,946 NZD