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Round|Natural|GIA

1.51ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2231826354

Certificate GIA 2231826354

Diamond specifications and retailer prices

From €7,856 EUR
$8,811 USD
As of November 1, 2026
Save €6,540 EUR (45%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €14,395 EUR at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2231826354. Listed at 21 retailers as of November 1, 2026, with prices from €7,856 to €14,395, a €6,540 spread on the same certified stone. NZ Jewellers lists it at €14,395. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2231826354
Dimensions7.27 × 7.32 × 4.58 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Key to symbols
Cloud, Crystal, Feather, Needle
Top View
7.27 mm7.32 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2231826354
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.8%

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: €14,395 EUR|Low: €7,856 EUR|High: €14,395 EUR|Avg: €9,843 EUR
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 3, 2026
Retailer 8€7,856 EUR
Retailer 11€8,014 EUR
Retailer 10€8,225 EUR
Retailer 20€8,246 EUR
Retailer 4€8,550 EUR
Retailer 6€8,636 EUR
Retailer 3€9,212 EUR
Retailer 2€9,390 EUR
Retailer 16€9,501 EUR
Retailer 21€9,611 EUR
Retailer 5€9,611 EUR
Retailer 15€9,620 EUR
Retailer 17€9,937 EUR
Retailer 7€10,137 EUR
Retailer 9€10,137 EUR
Retailer 12€10,476 EUR
Retailer 13€10,693 EUR
Retailer 14€11,028 EUR
Retailer 19€12,689 EUR
Retailer 18€13,489 EUR
NZ Jewellers€14,395 EUR

7 data points across 21 retailers

21 retailers€7,856 EUR to €14,395 EUR

B+
Cheapest Retailer
-
€7,856 EUR
$8,811 USD
B+
Retailer 2
-
€8,014 EUR
$8,988 USD
View
B+
Retailer 3
-
€8,096 EUR
A$13,970 AUD
View
B+
Retailer 4
-
€8,225 EUR
$9,225 USD
View
B+
Retailer 5
-
€8,246 EUR
$9,248 USD
View
B+
Retailer 6
-
€8,550 EUR
$9,590 USD
View
B+
Retailer 7
-
€8,636 EUR
$9,686 USD
View
Final sale: no returns
B+
Retailer 8
-
€8,650 EUR
$9,702 USD
View
B+
Retailer 9
-
€9,212 EUR
$10,332 USD
View
B+
Retailer 10
-
€9,390 EUR
£8,293 GBP
View
B
Retailer 11
-
€9,501 EUR
$10,656 USD
View
B+
Retailer 12
-
€9,611 EUR
$10,779 USD
View
B+
Retailer 13
-
€9,620 EUR
$10,790 USD
View
B+
Retailer 14
-
€9,937 EUR
£8,776 GBP
View
B+
Retailer 15
-
€10,137 EUR
$11,370 USD
View
B+
Retailer 16
-
€10,137 EUR
$11,370 USD
View
B+
Retailer 17
-
€10,476 EUR
$11,750 USD
View
B+
Retailer 18
-
€10,693 EUR
View
B
Retailer 19
-
€12,689 EUR
ZAR 229,920 ZAR
View
B
Retailer 20
-
€13,489 EUR
£11,913 GBP
View
Most Expensive
B
NZ Jewellers
7f99f642-1df0-480d-bbcf-61c86faa58f3 · Nov 2
€14,395 EUR
$16,146 USD
View
20 more retailers have this diamond
Prices start from €7,856 EURSave up to €6,540 EUR

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+
1.51ct Round
€7,856 EUR