Radiant|Lab Grown|GIA

4.51ct D IF Radiant Lab Grown Diamond

GD • D/IF • GIA 1533678398

Certificate GIA 1533678398

Diamond specifications and retailer prices

From $14,835 NZD
$8,361 USD
As of October 31, 2026
Save $47,210 NZD (76%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $64,031 NZD at Frank Darling · As of October 31, 2026
View at Frank Darling

About this 4.51ct lab-grown radiant diamond

This 4.51ct lab-grown radiant sits in the three to five carat band, graded D 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 1533678398. Listed at 19 retailers as of October 30, 2026, with a 318% 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

4.51
Carat
D
Colour
IF
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1533678398
Dimensions11.55 × 8.19 × 5.44 mm
L/W Ratio1.41
Girdle conditionPolished
Top View
11.55 mm8.19 mm4.51 ctD / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1533678398
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.4%

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 31
Current: $64,031 NZD|Low: $14,835 NZD|High: $101,761 NZD|Avg: $43,930 NZD|-24.1%
Frank Darling
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
October 30, 2026
Retailer 5$14,835 NZD
Retailer 15$15,541 NZD
Retailer 3$16,164 NZD
Retailer 14$17,858 NZD
Retailer 16$18,029 NZD
Retailer 6$18,785 NZD
Retailer 13$19,233 NZD
Retailer 9$19,814 NZD
Retailer 17$22,381 NZD
Retailer 12$31,593 NZD
Retailer 10$32,140 NZD
Retailer 4$62,045 NZD
Frank Darling$64,031 NZD
Retailer 2$88,165 NZD
Retailer 11$88,165 NZD
Retailer 7$96,983 NZD
Retailer 8$101,761 NZD

27 data points across 17 retailers

19 retailers$14,835 NZD to $62,045 NZD

B+
Cheapest Retailer
-
$14,835 NZD
$8,361 USD
B+
Retailer 2
-
$15,541 NZD
$8,759 USD
View
B+
Retailer 3
-
$16,164 NZD
$9,110 USD
View
B+
Retailer 4
-
$16,906 NZD
$9,528 USD
View
B+
Retailer 5
-
$17,858 NZD
$10,065 USD
View
B+
Retailer 6
-
$18,029 NZD
$10,161 USD
View
Retailer 7
-
$18,029 NZD
$10,161 USD
View
Price last confirmed 14 days ago
B+
Retailer 8
-
$19,233 NZD
$10,840 USD
View
B+
Retailer 9
-
$19,814 NZD
$11,167 USD
View
B
Retailer 10
-
$22,381 NZD
$12,614 USD
View
Retailer 11
-
$31,593 NZD
€16,958 EUR
View
Price last confirmed 8 days ago
B
Retailer 12
-
$32,140 NZD
£14,263 GBP
View
B
Retailer 13
-
$55,237 NZD
$31,132 USD
View
B
Retailer 14
-
$62,045 NZD
$34,969 USD
View
Most Expensive
Frank Darling
FK85889LGMY · Oct 31
$64,031 NZD
$36,088 USD
View
Price under review
14 more retailers have this diamond
Prices start from $14,835 NZDSave up to $47,210 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+
4.51ct Radiant
$14,835 NZD