CaratHunter
Plans
Round|Natural|GIA

5.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6237924909

Certificate GIA 6237924909

Diamond specifications and retailer prices

From $65,500 NZD
HK$287,400 HKD
As of October 29, 2026
Save $54,497 NZD (45%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $119,997 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 5.51ct natural round diamond

This 5.51ct natural round sits in the over five carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6237924909. Listed at 14 retailers as of October 29, 2026, with prices from $65,500 to $119,997, a $54,497 spread on the same certified stone. MOH London lists it at $119,997. 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

5.51
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6237924909
Dimensions11.15 × 11.24 × 7.04 mm
L/W Ratio1.01
Top View
11.15 mm11.24 mm5.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6237924909
Side View
Table 58.0%Crown 35°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 62.9%

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: $119,997 NZD|Low: $65,500 NZD|High: $127,298 NZD|Avg: $88,395 NZD|-2.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 7$65,500 NZD
Retailer 9$69,196 NZD
Retailer 3$76,210 NZD
Retailer 5$76,451 NZD
Retailer 8$77,327 NZD
Retailer 4$81,124 NZD
Retailer 2$92,734 NZD
Retailer 6$93,955 NZD
MOH London$119,997 NZD

42 data points across 9 retailers

14 retailers$65,500 NZD to $119,997 NZD

A
Cheapest Retailer
-
$65,500 NZD
HK$287,400 HKD
Retailer 2
-
$69,196 NZD
₹3,701,267 INR
View
Price last confirmed 7 days ago
Retailer 3
-
$74,166 NZD
SGD 56,290 SGD
View
Price last confirmed 19 days ago
A
Retailer 4
-
$76,210 NZD
£33,703 GBP
View
A
Retailer 5
-
$76,451 NZD
$42,938 USD
View
A
Retailer 6
-
$77,327 NZD
$43,430 USD
View
Final sale: no returns
A
Retailer 7
-
$81,124 NZD
£35,876 GBP
View
Retailer 8
-
$81,752 NZD
$45,915 USD
View
Price last confirmed 40 days ago
A
Retailer 9
-
$92,734 NZD
€49,603 EUR
View
Retailer 10
-
$93,848 NZD
$52,709 USD
View
Price last confirmed 37 days ago
A
Retailer 11
-
$93,955 NZD
$52,769 USD
View
Retailer 12
-
$96,303 NZD
A$83,212 AUD
View
Price last confirmed 171 days ago
Retailer 13
-
$97,457 NZD
$54,736 USD
View
Price last confirmed 37 days ago
Most Expensive
B+
MOH London
54D20B092 · Oct 29
$119,997 NZD
£53,067 GBP
View
13 more retailers have this diamond
Prices start from $65,500 NZDSave up to $54,497 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
5.51ct Round
$65,500 NZD