CaratHunter
Plans
Round|Natural|GIA

1.55ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6531637252

Certificate GIA 6531637252

Diamond specifications and retailer prices

From $8,591 AUD
$6,035 USD
As of October 31, 2026
Save $6,612 AUD (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $15,203 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6531637252. Listed at 9 retailers as of October 31, 2026, with prices from $8,591 to $15,203, a $6,612 spread on the same certified stone. MOH London lists it at $15,203. 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

1.55
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6531637252
Dimensions7.37 × 7.43 × 4.62 mm
L/W Ratio1.01
Top View
7.37 mm7.43 mm1.55 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531637252
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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: $15,203 AUD|Low: $8,591 AUD|High: $15,388 AUD|Avg: $11,297 AUD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 4$8,591 AUD
Retailer 10$8,620 AUD
Retailer 3$10,216 AUD
Retailer 8$10,962 AUD
Retailer 9$10,962 AUD
Retailer 7$11,332 AUD
Retailer 2$11,800 AUD
Retailer 5$12,021 AUD
Retailer 6$13,105 AUD
MOH London$15,203 AUD

33 data points across 10 retailers

9 retailers$8,591 AUD to $15,203 AUD

B+
Cheapest Retailer
-
$8,591 AUD
$6,035 USD
B+
Retailer 2
-
$8,620 AUD
$6,055 USD
View
B+
Retailer 3
-
$10,216 AUD
£5,651 GBP
View
B
Retailer 4
-
$10,962 AUD
$7,700 USD
View
B
Retailer 5
-
$10,962 AUD
$7,700 USD
View
B+
Retailer 6
-
$11,332 AUD
$7,960 USD
View
B+
Retailer 7
-
$11,800 AUD
£6,527 GBP
View
Retailer 8
-
$12,021 AUD
$8,444 USD
View
Price last confirmed 17 days ago
Most Expensive
B
MOH London
F3B0F60E8 · Nov 1
$15,203 AUD
£8,409 GBP
View
8 more retailers have this diamond
Prices start from $8,591 AUDSave up to $6,612 AUD

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+
1.55ct Round
$8,591 AUD