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Round|Lab Grown|GCAL

5.18ct D FL Round Lab Grown Diamond

EX • D/FL • GCAL 360876045

Certificate GCAL 360876045

Diamond specifications and retailer prices

From $16,826 NZD
$9,483 USD
As of October 31, 2026
Save $47,620 NZD (74%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $64,446 NZD at William & Sons Jewelers · As of October 31, 2026
View at William & Sons Jewelers

About this 5.18ct lab-grown round diamond

This 5.18ct lab-grown round sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GCAL 360876045. Listed at 6 retailers as of October 31, 2026, with prices from $16,826 to $64,446, a $47,620 spread on the same certified stone. William & Sons Jewelers lists it at $64,446. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.18
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGCAL
CertificateGCAL 360876045
Dimensions11.64 × 9.32 × 6.04 mm
L/W Ratio1.25
Top View
11.64 mm9.32 mm5.18 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 360876045
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 64.8%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $34,100 NZD|Low: $16,826 NZD|High: $257,788 NZD|Avg: $99,457 NZD|-63.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
William & Sons Jewelers
October 29, 2026
Retailer 5$16,826 NZD
Retailer 2$22,120 NZD
Retailer 1$34,100 NZD
Retailer 4$53,366 NZD
William & Sons Jewelers$64,446 NZD
Retailer 6$83,278 NZD
Retailer 3$102,892 NZD
Retailer 7$164,641 NZD
Retailer 8$186,448 NZD

18 data points across 9 retailers

6 retailers$16,826 NZD to $64,446 NZD

A
Cheapest Retailer
-
$16,826 NZD
$9,483 USD
A
Retailer 2
-
$22,120 NZD
$12,467 USD
View
B+
Retailer 3
-
$34,100 NZD
£15,133 GBP
View
B
Retailer 4
-
$53,366 NZD
$30,077 USD
View
Most Expensive
B
William & Sons Jewelers
cert_360876045 · Oct 31
$64,446 NZD
$36,322 USD
View
Final sale: no returns
4 more retailers have this diamond
Prices start from $16,826 NZDSave up to $47,620 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
5.18ct Round
$16,826 NZD