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Round|Natural|GIA

1.55ct I SI2 Round Natural Diamond

VG • I/SI2 • GIA 1133038001

Certificate GIA 1133038001

Diamond specifications and retailer prices

From $10,829 AUD
£5,990 GBP
As of November 1, 2026
Save $5,278 AUD (33%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $16,107 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 very-good cut grade and certified by GIA 1133038001. Listed at 4 retailers as of November 1, 2026, with prices from $10,829 to $16,107, a $5,278 spread on the same certified stone. MOH London lists it at $16,107. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.55
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1133038001
Dimensions7.35 × 7.37 × 4.60 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.35 mm7.37 mm1.55 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1133038001
Side View
Table 57.0%Crown 36°Girdle: VTN-STKPavilion 40.6°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: Nov 1
Current: $16,107 AUD|Low: $9,070 AUD|High: $16,301 AUD|Avg: $12,258 AUD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 5$9,070 AUD
Retailer 3$10,829 AUD
Retailer 2$12,574 AUD
Retailer 4$12,733 AUD
MOH London$16,107 AUD

37 data points across 5 retailers

4 retailers$10,829 AUD to $16,107 AUD

B+
Cheapest Retailer
-
$10,829 AUD
£5,990 GBP
B
Retailer 2
-
$12,574 AUD
€8,412 EUR
View
Retailer 3
-
$12,733 AUD
$8,944 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
945A938C1 · Nov 1
$16,107 AUD
£8,909 GBP
View
3 more retailers have this diamond
Prices start from $10,829 AUDSave up to $5,278 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
$10,829 AUD