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Round|Lab Grown|GIA

4.18ct D IF Round Lab Grown Diamond

EX • D/IF • GIA 1528600643

Certificate GIA 1528600643

Diamond specifications and retailer prices

From $8,730 NZD
$4,920 USD
As of October 29, 2026
Save $51,330 NZD (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $60,060 NZD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 4.18ct lab-grown round diamond

This 4.18ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 1528600643. Listed at 8 retailers as of October 29, 2026, with prices from $8,730 to $60,060, a $51,330 spread on the same certified stone. Do Amore Diamonds lists it at $60,060. 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

4.18
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 1528600643
Dimensions10.37 × 10.32 × 6.39 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather
Top View
10.37 mm10.32 mm4.18 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1528600643
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

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 29
Current: $60,060 NZD|Low: $8,570 NZD|High: $61,409 NZD|Avg: $22,590 NZD|-2.2%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 4$8,730 NZD
Retailer 6$9,148 NZD
Retailer 8$9,998 NZD
Retailer 9$12,175 NZD
Retailer 5$13,268 NZD
Retailer 2$18,796 NZD
Retailer 10$22,730 NZD
Retailer 3$22,865 NZD
Retailer 7$41,625 NZD
Do Amore Diamonds$60,060 NZD

28 data points across 10 retailers

8 retailers$8,730 NZD to $60,060 NZD

A
Cheapest Retailer
-
$8,730 NZD
$4,920 USD
A
Retailer 2
-
$9,148 NZD
$5,156 USD
View
A
Retailer 3
-
$9,998 NZD
$5,635 USD
View
Final sale: no returns
B+
Retailer 4
-
$13,268 NZD
$7,478 USD
View
B+
Retailer 5
-
$18,796 NZD
€10,089 EUR
View
B+
Retailer 6
-
$22,865 NZD
£10,147 GBP
View
B
Retailer 7
-
$41,625 NZD
$23,460 USD
View
Most Expensive
B
Do Amore Diamonds
27-91704D0D9 · Oct 30
$60,060 NZD
$33,850 USD
View
7 more retailers have this diamond
Prices start from $8,730 NZDSave up to $51,330 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
4.18ct Round
$8,730 NZD