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Round|Natural|GIA

1.00ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1558936352

Certificate GIA 1558936352

Diamond specifications and retailer prices

From $3,100 NZD
₹166,373 INR
As of November 1, 2026
Save $10,486 NZD (77%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $13,586 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558936352. Listed at 14 retailers as of November 1, 2026, with prices from $3,100 to $13,586, a $10,486 spread on the same certified stone. MOH London lists it at $13,586. 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

1.00
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1558936352
Dimensions6.35 × 6.40 × 4.01 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.35 mm6.40 mm1.00 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1558936352
Side View
Table 55.0%CrownGirdle: THN-MEDPavilionCulet: 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: Nov 1
Current: $13,586 NZD|Low: $3,099 NZD|High: $13,586 NZD|Avg: $4,871 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 2$3,100 NZD
Retailer 8$3,611 NZD
Retailer 6$4,258 NZD
Retailer 4$4,482 NZD
Retailer 7$4,808 NZD
Retailer 5$5,022 NZD
Retailer 12$5,113 NZD
Retailer 13$7,681 NZD
Retailer 3$7,874 NZD
Retailer 11$8,046 NZD
Retailer 9$8,208 NZD
Retailer 10$8,531 NZD
Retailer 14$9,487 NZD
MOH London$13,586 NZD

38 data points across 14 retailers

14 retailers$3,100 NZD to $13,586 NZD

A
Cheapest Retailer
-
$3,100 NZD
₹166,373 INR
A
Retailer 2
-
$3,611 NZD
$2,035 USD
View
B+
Retailer 3
-
$4,258 NZD
$2,400 USD
View
B+
Retailer 4
-
$4,482 NZD
$2,526 USD
View
B+
Retailer 5
-
$4,808 NZD
€2,581 EUR
View
B+
Retailer 6
-
$5,022 NZD
ZAR 45,730 ZAR
View
B+
Retailer 7
-
$5,113 NZD
£2,269 GBP
View
B
Retailer 8
-
$7,681 NZD
$4,329 USD
View
B
Retailer 9
-
$7,874 NZD
$4,438 USD
View
Final sale: no returns
B
Retailer 10
-
$8,046 NZD
$4,535 USD
View
B
Retailer 11
-
$8,208 NZD
£3,642 GBP
View
B
Retailer 12
-
$8,531 NZD
$4,808 USD
View
B
Retailer 13
-
$9,487 NZD
£4,210 GBP
View
Most Expensive
B
MOH London
1A7257153 · Nov 1
$13,586 NZD
£6,029 GBP
View
13 more retailers have this diamond
Prices start from $3,100 NZDSave up to $10,486 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
1.00ct Round
$3,100 NZD