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Round|Natural|GIA

1.05ct H I1 Round Natural Diamond

EX • H/I1 • GIA 6425595989

Certificate GIA 6425595989

Diamond specifications and retailer prices

From $2,398 SGD
$1,876 USD
As of November 1, 2026
Save $3,151 SGD (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,550 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6425595989. Listed at 7 retailers as of October 30, 2026, with prices from $2,398 to $5,550, a $3,151 spread on the same certified stone. NZ Jewellers lists it at $5,550. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
H
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6425595989
Dimensions6.49 × 6.46 × 4.04 mm
L/W Ratio1.00
Top View
6.49 mm6.46 mm1.05 ctH / I1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6425595989
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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: $5,550 SGD|Low: $2,398 SGD|High: $5,550 SGD|Avg: $3,169 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9$2,398 SGD
Retailer 7$2,504 SGD
Retailer 4$2,654 SGD
Retailer 6$2,654 SGD
Retailer 3$2,777 SGD
Retailer 5$3,063 SGD
Retailer 8$3,159 SGD
Retailer 10$3,237 SGD
Retailer 2$3,609 SGD
NZ Jewellers$5,550 SGD

21 data points across 10 retailers

7 retailers$2,398 SGD to $5,550 SGD

B+
Cheapest Retailer
-
$2,398 SGD
$1,876 USD
B+
Retailer 2
-
$2,654 SGD
$2,076 USD
View
B+
Retailer 3
-
$2,654 SGD
$2,076 USD
View
B+
Retailer 4
-
$2,777 SGD
$2,172 USD
View
B
Retailer 5
-
$3,063 SGD
$2,396 USD
View
B
Retailer 6
-
$3,609 SGD
€2,689 EUR
View
Most Expensive
B
NZ Jewellers
c4d2fe79-2c19-4ff9-bc90-d82f61b0973f · Oct 30
$5,550 SGD
$4,341 USD
View
6 more retailers have this diamond
Prices start from $2,398 SGDSave up to $3,151 SGD

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+
1.05ct Round
$2,398 SGD