CaratHunter
Plans
Round|Natural|GIA

0.40ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6555817232

Certificate GIA 6555817232

Diamond specifications and retailer prices

From $389 NZD
₹20,897 INR
As of October 31, 2026
Save $839 NZD (68%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,213 NZD at NZ Jewellers · As of September 24, 2026
View at NZ Jewellers

About this 0.4ct natural round diamond

This 0.4ct natural round sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6555817232. Listed at 15 retailers as of October 29, 2026, with a 215% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.40
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6555817232
Dimensions4.70 × 4.72 × 2.94 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Top View
4.70 mm4.72 mm0.40 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555817232
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.4%

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: $516 NZD|Low: $389 NZD|High: $1,350 NZD|Avg: $748 NZD|+0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 5$389 NZD
Retailer 2$477 NZD
Retailer 11$488 NZD
Retailer 1$516 NZD
Retailer 8$619 NZD
Retailer 4$633 NZD
Retailer 6$673 NZD
Retailer 7$820 NZD
Retailer 3$914 NZD
Retailer 9$932 NZD
Retailer 12$946 NZD
Retailer 10$1,228 NZD

33 data points across 12 retailers

15 retailers$389 NZD to $1,228 NZD

A
Cheapest Retailer
-
$389 NZD
₹20,897 INR
A
Retailer 2
-
$477 NZD
HK$2,100 HKD
View
A
Retailer 3
-
$488 NZD
$275 USD
View
Final sale: no returns
A
Retailer 4
-
$516 NZD
$291 USD
View
Retailer 5
-
$577 NZD
$325 USD
View
Price last confirmed 32 days ago
A
Retailer 6
-
$619 NZD
A$537 AUD
View
Retailer 7
-
$639 NZD
$360 USD
View
Price last confirmed 32 days ago
A
Retailer 8
-
$673 NZD
£299 GBP
View
Retailer 9
-
$770 NZD
$434 USD
View
Price last confirmed 32 days ago
B+
Retailer 10
-
$820 NZD
ZAR 7,468 ZAR
View
Retailer 11
-
$914 NZD
A$793 AUD
View
Price last confirmed 32 days ago
B+
Retailer 12
-
$932 NZD
$525 USD
View
Retailer 13
-
$946 NZD
€508 EUR
View
Price last confirmed 8 days ago
B
Retailer 14
-
$1,228 NZD
£545 GBP
View
Most Expensive
NZ Jewellers
d0f7a1ee-0d23-4048-b9e9-fcde47431fb0 · Sep 24
$2,213 NZD
$1,247 USD
View
Price last confirmed 37 days ago
14 more retailers have this diamond
Prices start from $389 NZDSave up to $839 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
0.40ct Round
$389 NZD